onno bokhove

Seminars

From: Fluid Fascinations, Valerie Zwart and Onno Bokhove 2010.

Seminars/Conferences in 2024

-1. B. London Mathematical Society day on Environmental Mathematics. Visualising return periods of extreme flooding events & cost-effectiveness of flood-mitigation measures slides 20-09-2024.

0. B. Firedrake meeting, Maths Institute, Oxford, 19-09-2024 Building a wave-to-wire finite-element wave-energy model in Firedrake slides.

1. Augustus 2024: B. & Choi. slides Maximum water-wave amplification of three interacting solitons in Kadomtsev-Petviashvili and potential-flow equations. ICTAM2024 South Korea, pending, invited.

2. Aug 24. 극한 환경 이벤트에 대한 웨트로폴리스 홍수 조사관하고 극한 물 파도 역학 Korea Maths Society Conference, Daegu, Korea, invited.

3. Extreme floods and waves: Part-I & Part-II Aug 21 Mathematics, KAIST, Daejeon, Korea.

4. July 4th 2024: Wetropolis flood investigator. LIFD Summerschool. Presentation reduced size

5. April 2024: Bokhove. Monster assimilation and adaptation in FRM: High Beck fluvial flood-mitigation case study. EGU2024 Vienna/online, pending.

Seminars/Conferences in 2023

1. MARIN 21-04-2023: Slides

2. April 25 CFC Cannes, France. Similar to 1.

3. Wetropolis showcasing at Flood and Coast 2023 as part of the Jacobs stand, Telford, June 6-8 (see linkedin and twitter; search 4 ``Wetropolis flood (demonstrator)'').

4. LIFD seminar 12-07-2023 slides (including design links on wavetank/Wetropolis) Slides

5. TU Denmark 04-09-2023 seminar (maths and mech. eng.) visiting Allan Engsig-Karup and Hary Bingham; ``Nonlinear water-wave and wave-impact dynamics using variational principles and automated numerics in Firedrake''; Slides & wave energy overview

Seminars/Conferences in 2022

1. Northumbria 09-03 pdf

2. BP Institute, University of Cambridge 17-03 pdf

3. Poster made for showcasing of Wetropolis at Leeds Institite for Fluid Dynamics, summarising Wetropolis exhibition 31-03-2022.

4. European General Assembly online talk, May 23rd 2022, Youtube presentation.

5. Wetropolis showing 28-05 to 05-06, Imperial College, Maths of Planet Earth exhibition, London. Poster.

6. Isaac Newton Program Dispersive hydrodynamics: mathematics, simulation and experiments, with applications in nonlinear waves . August 2022.

7. Wetropolis showcasing at Global Flood Partnership Conference in Leeds, 07-09. Wetropolis-in-action photo by AC

8. Wetropolis flood investigator: analysis of flooding under simplified weather and climate. Isaac Newton Institute satellite program GFD: from mathematical theory to operational prediction in Reading on Slides 15-09.

Seminars/Conferences in 2021

1. "On a novel wave-to-wire energy device in a breakwater contraction". Seminar speaker (online via Teams). 25-02-2021 Centre for Ocean Energy Research, Ireland.

2. Variational principle for a novel wave-energy device at BAMC 6-9 April 2021. Online.

3. "On communicating cost-effectiveness of flood-mitigation schemes." If accepted: ESREL conference, Angers, 19-23 Sept 2021.

4. EWTEC 2021. Jonny Bolton is (potentially) presenting on our wave energy device.

5. By Dr Tom Kent on 16-09-2021, online workshop by Georges Kesserwani Sheffield: Flood demonstrator Wetropolis

Seminars/Conferences in 2020

1. Wetropolis Flood Demonstrator showcasing Science Exhibition Maths of Planet Earth, at Imperial College, London, February 14-15.

2. EGU late May, Vienna. Becamse chat session due to Covid-19 on 05-05-2020.

3. Webinar Waves in One World 06-05-2020 online webinar Pdf file

4. Maths is dangerous: on maths for flood mitigation and on maths for a new wave-energy device. 21-10-2019. Physics Department, University of Utrecht.

5. Invited speaker on Data Assimilation, Sheffield workshop June 11-12, became online meeting on 16-09-2021, see above.

Seminars/Conferences in 2019

1. Communicating flood-mitigation plans with straightforward maths,

Maths in Action, Edinburgh, March 18th. Invited; special/guest lecture for 4th year students.

2. Communicating flood-mitigation plans with straightforward maths,

Maths at Work, Leeds 25th March. Invited, special/guest lecture for 1st year students.

3. Using flood-excess volume to assess and communicate flood-mitigation schemes EGU, Vienna April. Selected.

4. Poster Wetropolis: models for education and water-management for floods and droughts EGU, Vienna April. Selected.

5. Public empowerment in flood mitigation (ppt). Flood and Coast 2019, Telford UK, June 18th, or Public empowerment in flood mitigation (pdf). Selected.

6. Isaac Newton Institute July 2019. Landscape decisions program.

7. Presentation A novel wave-energy device with enhanced wave amplification and induction actuator (NA yet). European Wave Tidal Energy Conference, Napels, Italy, 1-7 September 2019. Refereed, including 9pp paper.

8. Presentation Variational discretisations for wave-ship and wave-energy dynamics (NA yet TBD). Egmond aan Zee, The Netherlands, 29-30 September 2019. Invited.

9. Presentation Dec. 11th Maths is dangerous: on maths for flood mitigation & a new wave-energy device. Seminar, invited, at Imperial College; see also abstract 11-12-2019.

Seminars/Conferences in 2018

1. General Assembly EPSRC network Maths Foresees University of Leeds, Leeds, January 8-9-10 2018, Leeds. General introduction and chairman.

2. EGU Wetropolis’ Flood Demonstrator: mathematical design & drowning by numbers (presentation) April

3. Marseille June 2018: B'Waves 2018

3. Seminar Communicating flood-mitigation schemes with the public: exemplified for UK/French rivers Exeter, November 9th 2018, recorded video link presentation, invited by Water Centre, Exeter.

4. Seminar Using ``Flood-Excess Volume'' to quantify andcommunicate flood-mitigation schemes Leeds, November 22nd 2018. Applied Mathematics seminar.

Seminars/Conferences in 2017

1. Study Group EPSRC network Maths Foresees mathematical challenges in river floodingApril 3rd 2017. Cambridge.

2. 2 talks: wave-ship interactions and Wetropolis flood demonstrator (pdf). Geometric methods in geophysical fluid dynamics, workshop Hamburg, June.

3. OMAE 2017 June, Trondheim, Norway.

4. On linear and nonlinear wave-ship interactions. Workshop on nonlinear water waves, Isaac Newton Institute, July 2017.

5. Drowning by numbers: how Wetropolis' flood demonstrator promotes flood-mitigation strategies, University of Cork, 10-11-2017.

6. Drowning by numbers: Wetropolis inspired flood excess volume estimates, DARE workshop, University of Reading, 21-11-2017.

7. On variational water wave modelling -with buoys/symmetric ships, 29-11-2017, Workshop on nonlinear water waves, Schrodinger Institute, Vienna.

Seminars/Conferences in 2016

1. Workshop on Energy based modelling, Berlin 7-8 April, Germany.

2. Workshop ``Energy Transfers on atmosphere and ocean 2016'', Hamburg 9-13 April, Germany.

3. Visit MARIN 14-15 April, The Netherlands.

4. Seminar at University of Reading, DTC Mathematics of Planet Earth Reading-Imperial. June 1st.

5. OMAE Conference Busan, Korea, June ; on work by Tomasz Salwa and Kelmanson, as well as Anna Kalogirou. Accepted.

6. Nonlinear Waves in the Ocean (Prof. Grimshaw), Beijing, China; on work by Floriane Gidel. Accepted.

7. UK Maths Foresees Network Second Workshop, Edinburgh 7-8 Sept. (co-organizer)

8. DTC's Fluid Dynamics' Conference Imperial College and University of Leeds, London.

9. Talk Workshop on Water Waves, Banff, Canada, November 2016.

10. Wetropolis flood demonstrator (talk) Seminar Applied Mathematics, University of Oxford, Dec. 2nd 2016 --excellent hosts and visit!

Seminars/Conferences in 2015

1. Seminar Keele, March 4th.

2. Hydro 2015 Sheffield with related paper in Applied Mathematical Modelling, March 24-25.

3. British Applied Maths Colloguium, presentation by myself and by Anna Kalogirou, April.

4. FEniCS '15, Imperial College. Posters by Tomasz Salwa, Floriane Gidel, Erily Mouloupolou, Anna Kalogirou, June/July.

5. UK Maths Foresees Network First Workshop, Leeds, May 18-20 (organizer); presented outreach project (awarded).

6. Workshop on Meteorological Sensitivity Analysis and Data Assimilation: poster, June.

7. SCICADE, Sept., Potsdam, presentation by me, co-author on presentation by Anna Kalogirou.

8. Study Group Maths Foresees with Industry, Isaac Newton Institute of Mathematical Sciences, Cambridge (organizer with Tiffany Aslam, Clare Merit).

9. Seminar at Warwick, ``Moving Ships on Linear Seas: Hamiltonian Dynamic'', Mathematics.

10. Mid-term Meeting overview EU European Industry project Surfs-up. Nov. 9th, Leeds.

11. Seminar at Newcastle, ``Moving Ships on Linear Seas: Hamiltonian Dynamics'', Mathematics. Dec. 11th.

12. Seminar ``Wave Impact on Wave-Energy Buoys and Ships'' at Universite de Bordeaux and INRIA, host Mario Ricchiuto. Dec. 13-15.

Seminars/Conferences in 2014

1. On Beach Formation and Dredging in Multiphase Hele-Shaw Flows". Applied Maths Seminar. School of Mathematics, Manchester. March 5th.

2. Nonlinear wave problems that I cannot control (yet). (March 27th), Workshop on Port-Hamiltonian Systems, Lorenz Center, Leiden, March 25-29, The Netherlands

3. "On Rogue Wave Energy". Seminar. School of Mathematics, Bristol, May 22nd.

4. "Numerical Modelling of Deep and Shallow Water Waves with Variational Discontinuous Finite Element Methods". Computational Methods in Water Resources, Conference, June 10-13, Stuttgart.

5. "Simplified Benchmark Experiments for Models of Breaking Waves on Dynamics Shingle Beaches". Int. Conference on Coastal. Engineering, June 15-20, Seoul, South Korea.

6. Water Waves program, Isaac Newton Institute, 14-07/08-08 "Dispersive and Shallow water models: variational principles, discretizations and experiments." (Introductory Lecture) August 8th.

7. Siam Conference on Nonlinear Waves, August 11-14, Cambridge.

8. Climatenet Conference, Leeds. August.

Seminars/Conferences in 2013

1. DGFEM for Linear Inertial Waves. (See pdf. of Edinburgh seminar 28th Feb.). Rotating Fluids Meeting University College London.

2. Multiphase Hele-Shaw Flows: from Beaches to Dredgers. BP Institute for Multiphase Flow. Feb. 7th.

3. Fast Simuation of Fast Ships in Heavy Seas & Dredging the Depths of Maths Pitch for STW-NWO Matching event.

4. Compatible Finite Element Discretizations of Geometric (Hydrodynamic) Systems Applied Mathematics seminar, Feb. 25th 2013.

5. Consistent Numerical Modeling of Linear Inertial Waves. School of Mathematics, Edinburgh. Feb. 28th.

6. Poster Inertial Wave Solutions in Tilted Cuboids at European General Assembly.

7. Seminar Mathematics Surrey May 8th. Multi-Phase Hele-Shaw Flows: Dredging the Depths of Maths

Fluid-particle interactions are investigated using quasi-2D Hele-Shaw cells. Firstly, Hele-Shaw experiments with beach and berm formation under driven and breaking waves will be presented. The mathematical design of this Hele-Shaw beach cell is triggered by analysing width- and depth-averaged hydrodynamic equations, such that the minimal gap width necessary for sustained wave breaking can be determined. Secondly, some pilot experiments will be shown, including aolean, dry `dune' formation as well as a particle dredging operation. Finally, we will discuss whether and how single-phase mixture equations can be used to model these fluid-particle flows efficiently.

8. Workshop Twente June 17-20. Summer School Port-Hamiltonian Systems. Applied Mathematics, University of Twente.

9. Seminar Multiphase Institute Eindhoven, June 21st. Dredging the Depths of Maths: Multi-Phase Hele-Shaw Flows at the Beach

Fluid-particle interactions are investigated using quasi-2D Hele-Shaw cells. Firstly, Hele-Shaw experiments with beach and berm formation under driven and breaking waves will be presented. The mathematical design of this Hele-Shaw beach cell is triggered by analysing width- and depth-averaged hydrodynamic equations, such that the minimal gap width necessary for sustained wave breaking can be determined. Secondly, some new pilot experiments on particle dredging will be shown. Finally, we will discuss whether and how single-phase mixture equations can be used to model these fluid-particle flows efficiently, and tentatively relate this to some research in Eindhioven!

10. Making Waves: Visualizing Fluid Flows

With Wout Zweers at Bridges Art & Maths conference, Enschede The Netherlands, 31st July.
Wout & I donated the Steel-Solion-Splash artwork to the Isaac Newton Institute of Mathematics sciences.

11. Compatible Space-Time Finite Element Discretizations for Wave Tanks.

SCICADE, co-organiser mini-symposium on Geometric Integration with Colin Cotter. Sept. Spain.

12a. Poster: Using a Bore-Soliton-Splash to understand Rogue Waves, Tsunamis & Wave Energy

Workshop "Statistical Mechanics and Extreme Events". Organized by Valerio Lucarini & Sandro Vaienti -many thanks!
Isaac Newton Institute, Cambridge, Oct. 20th- Dec. 20th. Mathematics of Fluid Earth programme.

12. On resurging a Bore-Soliton-Splash.

Fluids seminar DAMTP Cambridge Nov. 8th 2013.

13. On Closure for Particle Mesh Methods -Vlasov Poisson Dynamics

Dec. 4th. NDNS +& EMI Workshop (Eindhoven Multiscale Institute), Eindhoven, The Netherlands.
Workshop "Stochastic Modelling of Multi-Scale Systems". Organized by Harald van Brummelen & Jason Frank -many thanks!

14. On Time Integration and the Use of Clebsch Variables in shallow Water Equations

Dec. 6th. Video TBA "PDEs & GFD" Workshop. Isaac Newton Institute, Cambridge, Oct. 20th- Dec. 20th.
Organized by Beatrice Pelloni & Mike Cullen -many thanks! Mathematics of Fluid Earth programme.

Seminars/Conferences in 2012

9. Dry Granular Flows, Water Waves and Surf Induced Sand Dynamics.ESSI Seminar, University of Leeds. Oct. 26th.

8. Woods Hole, July 24th. Conservative Water Wave Model.

- Bore Soliton Splash YouTube (scroll down).
- Intermezzo BB-notes can be made upon request.
- Addition to motivation (after discussion with J.K.): instead of having a fixed point,
where potential flow (purple) is coupled to shallow water (red) dynamics ( movie), predict this time-dependent point with new model.

7. Woods Hole, July 18th. Berm and Beach Formation. See under 5.

6. Siam Conference on Nonlinear waves and Coherent Structures, Seattle, June.

5. Shallow Flows Symposium: Breaking Waves on a Dynamic Hele Shaw Beach. Iowa. June 3rd.

4. Consistent Modelling of Waves in Oceans and Seas

3. EGU General Assembly, Vienna, April 10-14. O.B. Hamiltonian Boussinesq model.

For movies look under 2012/2011 seminars/my main page for Hele-Shaw beach and Bore Soliton Splash, and Elena Gagarina's www.

YouTube lecture (Thx to Shavarsh Nurijanyan).

Poster Bore Soliton Splash: Relevance to Rogue Waves, Tsunamis, and Wave Energy in Natural Hazards session.

2. O.B. March 7th 2012: Stormy Maths. & Reduced file size.

1. O.B. 18th Jan. 2012: The Holy Grain of Breaking Waves Sand Dynamics.

Seminar at Maritime Engineering/Ship Hydrodynamics/Dredging Engineering, TU Delft. With life experiment.
- MOVIES: wave types (8s, 63s, 1:55min, 2:13min), beach creation , see public directory of those samples.

Seminars/Conferences in 2011

8. Seminar at CASA, Nov. 17th Mathematics of Hele-Shaw Beach Dynamics. TU Eindhoven.

7. Rogue Waves, Dresden, 7-11 Nov. 2011: A Rogue Bore-Soliton-Splash.

Low resolution; links in italics not working:
- FILMS via Zweers you Tube

6. "Hamiltonian particle mesh methods for Vlasov-Poisson dynamics", with Jason Frank, Conference in Barcelona on Particle Methods, 26-28 October 2011.

5. Making waves at Beaches. Fields Institute Workshop, University of Toronto, June 13-16, 2011.

- MOVIES dune/beach formation creation dune 18-03-2011 (Mix 0.6/0.9Hz); creation beach 18-03-2010 (0.6Hz)

- Coupling potential flow and shallow water with bores

- Bore Soliton Splash web page; see poster under 4

- New water wave model: see Cotter and B. 2010 under pubs; and, for Hamiltonian version poster of Elena

4. Poster: Bore Soliton Splash. European Geophysical Union, General Assebly, Vienna, 4-8 April 2011.

3. "On the beach: maths of breaking waves" Mathematics Colloquium. University of Utrecht, 24-03-2011.

Firstly, wave breaking will be classified in a mostly descriptive way.

Secondly, wave motion can be divided according to depth of water: shallow and deep. A division can thus be made into hyperbolic and dispersive wave models as limiting systems.

Thirdly, we begin with an investigation of the shallow water equations, including a model of wave breaking, numerical results and challenges.

Finally, we explore new (numerical) models of mixed hyperbolic- elliptic type for waves in deeper water, based on Luke's variational principle, and extensions thereof.

Throughout, we will use in-house (live) experiments, including a mini-beach with wave-sand dynamics and the bore-soliton-splash; for purposes of visualisation, but also for fun and as reality check. The wider relevance of this work for our water-swept "nether lands" will become evident.

2. Surf's up: breaking waves on beaches Maths Colloquium Twente. 27-01-2011. Limited links.

Some movies: Aleksey Konstantinovich Tolstoy's "As wave after wave" and creation of a beach 01-01-2010 (1 wavemaker frequency); creation of dune 18-03-2011 (Mix of 0.6 and 0.9Hz); creation of a beach 18-03-2010 (0.6Hz).

1. O.B. Bore-Soliton-Splash. With designer Wout Zweers. Pitch for Professors and Dean of Mechanical Engineering in Twente. 05-01.

Seminars/Conferences in 2010

10. O.B., Fast fluid-particle flows. Seminar in Engineering Fluid Dynamics group, University of Twente. Dec. 2nd.

9. O.B., Bore-Soliton-Splash / Soliton-Sprong-Spetter, public lecture for parents of prospective maths students, 19-20 november.

8. O.B, Wave-Sand Interactions in a Hele-Shaw Cell. Sevilla-Fermat-IMPACT meeting on multiphase flows, Sevilla, Spain, October 20-22.

7. O.B., Bore-soliton-Splash, 30th Sept. 2010: speech opening O&O square, University of Twente.

6. O. Bokhove, Geophysical Fluid Dynamics Program, Woods Hole Oceanographic Institution, U.S.A., June-August 2010.

5. "Beach formation by breaking waves", Wave Flow Interactions III, June 14-18, St. Andrews, Scotland.

4. "Hamiltonian water wave model: balancing dispersion and nonlinearity" EGU General Assembley, May 2010, Vienna.

3. "Creation of a 2D beach by breaking waves" EGU General Assembley, May 2010, Vienna. See talks 5/6.

2. Rapid granular flows Lecture in Burgers Center course on granular flows. February 9th 2010.

- Study group Mathematics with Industry, 2010, CWI.

1. "Fluid Fascinations", a Qua Art and Qua Science Show for general audience in collaboration with artist Valerie Zwart;

and with a live experiment made in collaboration with designer Wout Zweers designed by myself.

Later more scientific version.

Based on the collection of slides/photos of and inspired by the late Professor Howell Peregrine. Available upon request.

Movies: Aleksey Konstantinovich Tolstoy's "As wave after wave" and "creation of a beach".

Seminars in 2009

10. O. Bokhove, Variational water wave model -with accurate dispersion and vertical vorticity.

December 9th, Seminar in Analysis group Free University of Amsterdam.

9. O. Bokhove, November 27th 2009: "Supercritical shallow granular flows through a contraction."

Workshop Computational Multiscale Modeling, Applied Mathematics, University of Twente.

For the movies see granular, hydraulic and slurry flows.

C2. FERMaT-IMPACT workshop on Multiphase Flows 14-16 October 2009, University of Twente; co-organizer.

8. O. Bokhove, October 23rd 2009: "Supercritical shallow granular and slurry flows through a contraction." Scaling transitions: Lorentz Center, Leiden.

For the movies see granular, hydraulic and slurry flows.

P1. O. Bokhove, poster: Variational water wave model -with accurate dispersion and vertical vorticity. Woudschoten 7-9 October 2009. 1-minute show.

7. Overview of Fluid-Solid Mechanics research in the Twente Research Institute IMPACT, meeting 24-25 september 2009.

6. O. Bokhove: Simulations of hybrid Rossby-Shelf modes in a laboratory ocean. Num-dif-12, Halle, September 2009.

DGFEM simulations hybrid Rossby-shelf modes: potential vorticity "omega" and streamfunction Psi

Laboratory visualizations: Hybrid Rossby-shelf mode travelling through a cylindrical laboratory ocean

Separatrix movie .

C1. Numdiff-12: 14-18 September 2009.

Numerical Solution of Differential and Differential-Algebraic Equations, Halle, DE. Organizing mini-symposium on geophysical flows with Jason Frank.

Confirmed speakers mini-symposium: Sebastian Reich, Svetlana Dubinkina, Sander Rhebergen, Joerg Wensch, Illia Horenko, Jason frank and Onno Bokhove.

5. O. Bokhove, "Hamiltonian water wave model -with accurate dispersion and vertical vorticity." 30th June/3rd July: Capstone Conference, Warwick.

4. O. Bokhove, week May, 26th: "Hamiltonian water wave model -with accurate dispersion and vertical vorticity."

Workshop on mean-flow interactions, Edinburgh.

Coupling code wave basin: potential waves (purple) and SWE (red) at beach (blue)

3. O. Bokhove, May 6th: "Supercritical shallow granular and slurry flows through a contraction." (23-10-2009 slides are slight extension)

Dynamics of Patterns Day, Trippenhuis, Amsterdam.

2. O. Bokhove, April 14th: Towards a discontinuous Galerkin finite element Hamiltonian water wave model with vertical vorticity.

at Mathematisch Congres, Groningen.

1. O. Bokhove, March: "Discontinuous Galerkin finite element method for water waves." in Algorithmy Workshop, Slovak.
The oblique waves on beach movie
The waveguide beach movie
The ocean movie
The depth-averaged two-phase flow movie

Seminars in 2008

[Joop Bokhove, 5 juni 2008: TW Colloquium Twente: Reken-wiskunde onderwijs in de basisschool. Notities bij de figuren gebruikt tijdens de voordracht.
Een prangende vraag uit het publiek was: "Hoe kan het rekenniveau op de PABO worden verhoogd zonder de instroom te verminderen? Hogere eisen of ingangseisen stellen leidt immers bijna per definitie tot een verlaging van de instroom en de uitstroom van geslaagde leraren."

Spreker en publiek hadden daar geen zinnig antwoord op tijdens de voordracht.

Maar verdere discussie des avonds leidde wel tot een zinnig antwoord: "Verhoog het rekenniveau van de afgestudeerde PABO-student door het niveau van tussentijdse en eindtoetsen rekenen te verhogen en te eisen dat de student voor die toets moet slagen. Zonder extra maatregelen leidt dat waarschijnlijk tot een verminderde instroom van PABO studenten en uitstroom van geslaagden. Verleng daarom de PABO met 1 jaar tot in totaal vijf jaar, in elk geval voor de studenteninstroom met een lagere vooropleiding, en gebruik dat extra jaar om uitsluitend meer inhoudelijk onderwijs te geven (over rekenen) bovenop een verhoging van het aantal uren rekenonderwijs in de voorgaande vier jaren. De politiek en de onderwijswereld kunnen, indien wenselijk, besluiten om extra beurzen te verschaffen aan PABO-studenten om deelname aan zo'n langere PABO-studie te stimuleren."
Kwaliteitsarme discussie rekenen in media? (O. Bokhove) ]

Sollie, Van der Vegt, and Bokhove, O., 2009: Space time DG method for two fluid flows.

11. Bokhove, O., 16-18 December 2008: FERMaT/IMPACT Journee Thematique on multiphase flows, Toulouse, France. Hydraulic and slurry flows through a channel contraction.

10. Bokhove, O., 10-12 December 2008: Shallow flows symposium, Hongkong. Hydraulic and slurry flows through a channel contraction. EFMC7, Manchester, England. Poster.

9. Bokhove, O., Nov. 6th 2008: BP Institute for Multiphase Flow, Cambridge, U.K. Dynamics of fluid-filled gelatin cracks.

8. Bokhove, O., Nov. 4th 2008: MAS seminar CWI, Amsterdam Dynamics of fluid-filled gelatin cracks. .

7. Bokhove, O., September 2008: Hydraulic Flow through a Channel Contraction: Multiple Steady States. EFMC7, Manchester, England. Poster.

6. Bokhove, O., K. Kiyosugi, C. Connor, 22nd August 2008: Magma-rock interactions in gelatin-water laboratory experiments. IAVCEI conference, Iceland.

5. Bokhove, O., July/August 2008: Discontinuous Galerkin finite element methods for hyperbolic nonconservative partial differential equations.

Ocean basin avi. Eccomas conference, Venice.

4. Bokhove, O., May 15th 2008: Magma-rock interactions in gelatin-water laboratory experiments.
Physics of Fluids Group, Department of Physics, University of Twente. (Take pdf of Feb. 14th)

P1. Bokhove, O., 17th April 2008: Hydraulic Flow through a Channel Contraction: Multiple Steady States. Poster at EGU General Assembley 14th-18th April, Vienna, EU.

3. Bokhove, O., 6th March 2008: Shallow slurry flows through a contraction.
Fundamentals of Chemical Reactor Engineering Group, Department of Chemical Engineering, University of Twente. (Take pdf of Feb. 14th)

2. Bokhove, O., 14th February 2008: Supercritical shallow granular and slurry flows through a contraction. School of Mathematics, Bristol. Go here for movies.

1. Bokhove, O., 8th February 2008: Supercritical shallow granular and slurry flows through a contraction.
JMBC Course, UT. (Take pdf of Feb. 14th)

C1. Find smart solutions for industrial problems
Jan. 28th-Feb. 1st. 2008 Study Group Mathematics with Industry 2008 in Twente: smart solutions to all your industrial challenges!

Seminars in 2007

1. Bokhove, O., 14th March 2007: Supercritical shallow granular and slurry flows through a contraction.
Pop-up. Geophysics group seminar, Department of Physics, University of Toronto.

2. Bokhove, O., March 9th 2007: Air parcels and air particles: beyond Hamiltonian dynamics.
seminar at Atmospheric physics group, Department of Physics, University of Toronto.

3. Ben Akers, Onno Bokhove, with a demo by Jack Whitehead, June 28th 2007:
Hydraulic flow through a contraction: multiple steady states.
GFD program Woods Hole Oceanographic Institution, Walsh Cottage, Woods Hole, U.S.A.

4. Onno Bokhove for IMPACT-granular-flow-team, 26th October 2007:
Impact of rapid granular flows in open channels -influence of particle characteristics and geometry.
Meeting Raad van Toezicht of the research Institute IMPACT, University of Twente. Pdf-file without movies.
Go here for movies.

11 Seminars and 1 poster in 2006

1. Bokhove, O., 13th Feb. 2006: Rapid shallow and hydraulic granular flows through a contraction.
Applied Mathematics Seminar, Department of Mathematics and Statistics, University of Edinburgh.

2. Bokhove, O., 18th Feb. 2006: Magma flow through elastic-walled dikes. Engineering Maths Seminar University of Durham, U.K.

3. Bokhove, O., 3rd April 2006: Parcel and Particle Eulerian-Lagrangian Methods for Geophysical Flows

New aspects of Theoretical GFD, EGU General Assembley 2006. Invited speaker. Vienna 3-7 April 2006.

P1. Bokhove, O.; Al-Tarazi, M.; Kuipers, J.A.M; Sint Annaland van, M.; Vreman, A.W., 6th April 2006:

Shallow Granular Flow through a Contraction. Poster EGU General Assembley 2006. Vienna 3-7 April 2006.

- Tassi P. (presentator), Bokhove O., Ottevanger W., and Vionnet C. 2006:

Discontinuous Finite Element River Hydraulics and Morphology with Application to the Parana River, Argentina.

EGU General Assembley 2006. Vienna 3-7 April 2006. Poster.

- Vreman (speaker), ..., Bokhove: Shallow granular flow through contraction. Workshop Particle laden flows in geophysical fluid dynamics.

- V. Ambati, O. Bokhove, P. Tassi, 7 and 8th June 2006: Coastal Waves: Lerarenconferentie June 7 and 8th 2006

4. Bokhove, O. June 13th 2006: IMPACT of fluid and solid mechanics. FSM IMPACT IMPACT strategy meeting.

5. Bokhove, O. June 2006: IMPACT of fluid and solid mechanics. Meeting with Board of directors.

6. Onno Bokhove, July 2006: three 1.5hr lectures at Geophysical Fluid Dynamics Workshop.

LabMath Indonesia. 17-28th July, Bandung, Indonesia. Lecture material: notes, slides and Matlab demo's with readme.

7. Onno Bokhove, August 2006: Spherical Hamiltonian Isentropic Two-Layer Model for Atmospheric Dynamics. Workshop in Oberwolfach.

8. Erik Bernsen, Onno Bokhove, and Jaap van der Vegt, September 2006:
A (dis)continuous finite element model for Galerkin generalized vorticity-streamfunction formulation. ECCOMAS CFD 2006, Egmond aan Zee.

9. Vijaya Ambati and Onno Bokhove, September 2006:
Flooding and drying in discontinuous Galerkin discretizations of shallow water equations. . ECCOMAS CFD 2006, Egmond aan Zee.

10. Onno Bokhove, October 2006: On two-dimensional vortical flows with separatrices. Workshop Lorentz Center in Leiden, organizers Jason Frank and O.B..

11. Onno Bokhove, November 2006: Magma flow in elasted-walled dikes and conduits, Groningen.

9 Seminars in 2005

1. Bokhove, O., July 2005: Reservoir formation in shallow granular flows through a contraction.

GFD Fellowship Program, Walsh Cottage, Woods Hole Oceanographic Institution

Collaboration with M. Al-Tarazi, J.A.M. Kuipers, M. van Sint Annaland and A.W. Vreman.

2. Bokhove, O., August 2005: Introduction to finite element methods.

Department of Geology, University of Tampa Bay, Florida.

3. Bokhove, O., August 2005: Reservoir formation in shallow granular flows through a contraction.

Department of Geology, University of Tampa Bay, Florida.

4. Bokhove, O., September 2005: Reservoir formation in shallow granular flows through a contraction.

Department of Applied Mathematics, University of Twente.

5. Bokhove, O., October 1st 2005: Parcel Eulerian-Lagrangian Hamiltonian dynamics for geophysical flows.

Workshop on Numerical methods in Weather Prediction. University of Potsdam, Potsdam, Germany.

6. Bokhove, O., October 4th 2005: Reservoir formation in shallow granular flows through a contraction.

Burgers Centrum Course on granular flows, University of Twente. Research presentation.

7. Bokhove, O., October 6th 2005: Introduction to (dis)contionuous Galerkin finite element methods. Notes

Burgers Centrum Course, University of Twente. Slides.

8. Bokhove, O., November 7th 2005: Reservoir formation in shallow granular flows through a contraction.

FOM dagen Stroming en warmte.

Three states in water flow through a contraction (Courtesy Ben Akers)

9. Bokhove, O., November 11th 2005: Parcel Eulerian-Lagrangian Hamiltonian dynamics for geophysical flows.

Workshop on Patttern Dynamics. Lorentz Center. University of Leiden.

14 Seminars and 5 Posters in 2004

1. Bokhove, O., 22nd April 2004: Hamiltonian restriction of Vlasov equations to multilayer geophysical equations. Pitlochry, Scotland, EPSRC meeting Research network Geometric Modelling of Geophysical Fluid Dynamics.

P1. O. Bokhove, 26th April 2004:
Constrained Isentropic models of tropospheric dynamics. (poster with Aukje de Boer and Andrew Woods) EGU meeting 2004, Nice.

2. O. Bokhove, 30th April 2004:
Constrained Isentropic models of tropospheric dynamics. (presentation of paper with Dr. Verkley);

P2. Erik Bernsen, O. Bokhove and J. Vanneste, 10th June 2004: On two-dimensional vortical flows with separatrices. Poster at Nonlinear Dynamics Symposium, University of Twente, The Netherlands.

P3. O. Bokhove, 10th June 2004: Hamilonian balanced dynamics of weather models. Poster at Nonlinear Dynamics Symposium, University of Twente, The Netherlands.

3. Bokhove, O., 13th July 2004, Magma Flow in Elastic-Walled Dikes. Workshop lava modelling group, Washington, U.S.A.

4. O. Bokhove, 28th July 2004: Wave-vortex interactions in the atmosphere, and climate prediction. Geohysical Fluid Dynamics network with KNMI, CWI. Try-out for ICTAM04 Poland conference.

5. O. Bokhove, 16th August 2004: Wave-vortex interactions in the atmosphere, and climate prediction. Invited lecture at the ICTAM 2004 Conference in Warsaw, Poland.

P4. Pablo Tassi, V. Ambati, O. Bokhove, September 2004: Discontinuous Galerkin models for river flows Poster at workshop on Mathematical modelling of river hydraulics, Bath, U.K.

P5. M. Al-Tarazi, M. van SintAnnaland, J.A.M. Kuipers, and O. Bokhove, 29 September 2004, Granular flow dynamimcs over inclined surfaces and around objects: experimental study and validation with the soft-sphere particle model. Poster for IMPACT day of research institute IMPACT, University of Twente.

6. Bokhove, O., October 2004, On kinetic schemes for pseudo compressible fluid equations . Short presentation at Woudschoten Conferentie, Woudschoten, The Netherlands.

7. Bokhove, O., 11th October 2004, Magma Flow in Elastic-Walled Dikes. Workshop lava modelling group, Bristol, U.K.

8. Bokhove, O., 3rd November 2004, Flooding and drying in finite element shallow water flows. Presentation at the Facultad de Ingenieria y Ciencias Hidricas at the Universidad Nacional de Littoral, Santa Fe, Argentina.

9. Bokhove, O., 4th November 2004, Flow of volatile-free and volatile-rich basaltic magma through elastic-walled dikes. Presentation at the Facultad de Ingenieria y Ciencias Hidricas at the Universidad Nacional de Littoral, Santa Fe, Argentina.

10. Bokhove, O., 11th November 2004, An implicit discontinuous Galerkin finite element method for water waves. Presentation of J. van der Vegt and Satyendra Tomar given by Onno Bokhove at the ENIEF 2004 XIV Congress on Numerical Methods and their Applications, 8-11 November 2004, Bariloche, Argentina.

11. Bokhove, O., 11th November 2004, Flooding and drying in finite element shallow water flows. Presentation for ENIEF 2004 XIV Congress on Numerical Methods and their Applications, 8-11 November 2004, Bariloche, Argentina.

12. Bokhove, O., November 2004, Flow of volatile-free and volatile-rich basaltic magma through elastic-walled dikes. Presentation for IAVCEI (International Association of Volcanology and the Chemistry of the Earth's Interior) General Assembley 2004, 15-19 November 2004, Pucon, Chile.

13. Bokhove, O., 7th December 2004, A (Dis)Continuous Finite Element Model for Generalized 2D Vorticity Dynamics. Computational Science seminar, School of Engineering and Science, International University Bremen, Bremen

14. Bokhove, O., 16th December 2004, Hybrid Eulerian-Lagrangian fluid dynamics: how fluid parcels and positieon fit through oen door. Jonge Honden seminar, Mathematical Physics and Numerical Mathematics seminars, Department of Applied Mathematics, University of Twente.

Seminars and Posters 2003

Bokhove, O., 28th April 2003: Flooding and drying in finite element discretizations of 1D shallow-water equations. Kontakt Groep Numerieke Wiskunde. MARIN Wageningen.

O. Bokhove, 2003: Drying and wetting in finite element shallow-water flows. International Symposium on Shallow Flows June 16-18 2003, Delft University of Technology, The Netherlands.

Bokhove, O., Magma Flow in Elastic-Walled Dikes. Geophysical, Granular, and Particle-Laden Flows, Workshop in Bristol, 27-31 October 2003 from the Isaac Newton Institute of Mathematical Scieces, Cambridge.

Seminars 2002

Bokhove, O., 8th January 2002: Modeling compressible flows in GFD. Department of Earth Sciences, University of Cambridge.

Bokhove, O., 11th January 2002: Dirac-bracket approach to balanced models . First Annual Meeting of the Geometric Methods in GFD Network. University of Edinburgh, Department of Mathematics, Edinburgh, UK; International Centre for Mathematical Sciences, 10-11 January 2002.

Bokhove, O., 22nd April 2002, Homogenizing coastal canyons. OA3. Open session on coastal/shelf seas. European Geophysical Society XXVII General Assembly, Nice, France, April 2002.

Bokhove, O., 26nd April 2002, Hamiltonian Slow- and Weak Fast-Mode Models NP14. Open session on balance in geophysical fluid dynamics, European Geophysical Society XXVII General Assembly, Nice, France, April 2002.

Bokhove, O., 23rd May 2002, Perturbation theory and Dirac's constrained Hamiltonian approach in atmospheric dynamics. SSB-seminar. Faculty of Mathematical Scieces, University of Twente.

Bokhove, O., 6th June 2002, Homogenizing coastal canyons. Research group Civil Engineering. University of Twente.

Bokhove, O., 10th June 2002, Homogenizing coastal canyons. Research group Department of Mathematics. University of Leiden.

Bokhove, O., November 2002, Magma-repository interactions. Applied Mathematics group seminars, University of Edinburgh.

Bokhove, O., A. de Boer, and A.W. Woods, 12th December 2002, Flexible-wall-fluid-flow interactions. Third Fundamentals of Fluid Flow meeting, BP Institute for Multiphase Flows, University of Cambridge..

Bokhove, O., 17th December 2002, Drying and wetting in finite element approximations of 1D shallow-layer equations. Second Annual Meeting of the Geometric Methods in GFD Network. Wye, Kent.

Seminars 2001

Bokhove, O., 3rd October 2001: Dirac-bracket aproach to nearly-geostrophic Hamiltonian balanced model. KNMI-CWI-University of Twente group informal meeting on atmospheric dynamics, KNMI.

Bokhove, O., 10th July 2001: Explosive eruptions in subsurface tunnels. Fluid Dynamics and Heat transfer group, Department of Physics, University of Twente.

Bokhove, O., Micheal Patterson, D. Howell Peregrine, 14th June 2001: Obliquely incident breaking shallow-water waves at beaches. Wave Phenomena III Conference, Pacific Institute for the Mathematical Sciences, Edmonton, Canada.

Bokhove, O., 12th June 2001: Explosive eruptions in subsurface tunnels. Wave Phenomena III Conference, Pacific Institute for the Mathematical Sciences, Edmonton, Canada.

Email: o.bokhove[AT]leeds.ac.uk