Denys DUTYKH's Home Page                                                          Денис Дутых
CR CNRS

My photo Professional address:

Université de Savoie-CNRS
Laboratoire de Mathématiques
LAMA - UMR 5127
Campus Scientifique
73376 Le Bourget-du-Lac

e-mail:
Denys.dot.Dutykh at univ-savoie.dot.fr

Office:  +33 04 79 75 86 52
Fax:      +33 04 79 75 81 42
Mobile:  +33 06 66 06 97 58
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Contents:
  1. News
  2. Scientific interests
  3. Publications
  4. Awards
  5. Talks
  6. Simulations
  7. Teaching
  8. Scientific software
  9. Links
  10. Downloads
  11. My hobby
Welcome to my website!

    I prepared my PhD at CMLA, ENS Cachan. My advisor was Frédéric Dias. The title of thesis is "Mathematical modelling of tsunami waves".

    At the present time I'm working at LAMA, University of Savoie as a researcher of CNRS.
 
Attention sign You can obtain a hard copy of my PhD thesis after a simple request. Please, send me your postal address by e-mail


I hope you will find some useful information here.



Awards


Photos from ceremony "Le Prix La Recherche", Sénat, 27 November 2007

Veolia team On the stage Frederic talk With chief of comission

NEWS

16/02/2010: We are going to organize from 17 to 21 May 2010 a session at Wolfgang Pauli Institute (Vienna) devoted to two-phase and compressible flows. If you would like to participate, please, take a contact with me. This event will be in the spirit of previous September meeting in Vienna.

16/02/2010: During last days we submitted a couple of new papers. The first one describes our code VOLNA for tsunami wave modelling: "The VOLNA code for the numerical modelling of tsunami waves: generation, propagation and inundation". The second paper is more theoretical and deals with application of variational principles to water wave modelling: "Practical use of variational principles for modeling water waves".

28/09/2009: Some photos and talks from our session "Numerical methods for complex fluid flows" at Wolfgang Pauli Institute (Vienna) are available online.

15/09/2009: From 21 to 25 September 2009 we organize a session at Wolfgang Pauli Institute (Vienna) entitled "Numerical methods for complex fluid flows".

30/03/2009: Magazine "La Recherche" (N429, April 2009) published an article about our recent results on mathematical modelling of powder snow avalanches. The preprint of our work can be found here.

18/02/2009: My interview on general strike of universities in France was published in a russion journal Gaudeamus based at Saint-Petersburg. It is in russian, of course...

19/01/2009: Finally we finished and submitted our first article on powder-snow avalanches entitled "Numerical simulation of powder-snow avalanche interaction with an obstacle" to Applied Mathematical Modelling 

01/12/2008: I am going to deliver a talk on numerical modelling of tsunami waves at the workshop "Oceanography and mathematics", Ecole Normale Supérieure de Paris, 26 - 28 January 2009

22/10/2008: Our paper "Energy of tsunami waves generated by bottom motion" was accepted to Proceedings of the Royal Society A.

26/06/2008: An article about our recent results on sediments appeared in New Scientist!


SCIENTIFIC INTERESTS


PUBLICATIONS

International Journals
Proceedings with Review Committee
Proceedings Research Reports
Theses
Dissemination of scientific knowledge
Book review
Reviewer activities

Journals:

Conferences: Grants:

CONFERENCES AND TALKS

Scientific meeting organization:
Dissemination of scientific knowledge:

SIMULATIONS

Remark: If you do not succeed to open/play the avi files on your computer, please, install this codec's pack

Powder-snow avalanches:
Small obstacle simulation Big obstacle simulation
Avalanche animation Pressure field

Driven cavity flow test case (Re = 10 000):
freefem++ driven cavity

FreeFem++ (mesh resolution 120²)
icoFoam cavity

OpenFOAM (mesh resolution 200²)

Catalina #2 benchmark problem (with our code VOLNA):
Animation Tide gauge data

Flow over irregular bottom, k-epsilon turbulence model:
Velocity field
Velocity field
Turbulent kinetic energy
Turbulent kinetic energy

Incompressible two-phase flow. Classical dam-break test-case:
gamma_break.avi
Volume fraction
press_break.mpg
Pressure
u_break.avi
Velocity magnitude

Compressible two-phase flows. Exactly the same dam-break problem:
Simulation file
Mixture density
Simulation file
Pressure

Our results on long wave run-up problem:
Movie runup
by courtesy of R. Poncet
Movie profile
by courtesy of R. Poncet

Partial dam break problem:
barrage.jpg
Long wave run-up on a sloping beach:
runup.jpg
 
"Water" mass dropping down:
Click here to download the animation...
Splash simulation with two phase model:
Click here to download the animation

Unstructured finite volume solver for tsunami generation problems (NSWE with time dependent bathymetry):

nonviscous simulation:
nonviscous.avi
viscous computation:
viscous.avi

"Water drop in a basin" test-case for viscous shallow-water equations (unstructured finite-volume solver):

Illustration to a recent talk on viscous shallow water equations
nonviscous simulation:
nonviscous.avi
viscous computation:
viscous.avi

Tsunami energy computation:
Free surface animation:
Free surface plot
Corresponding wave energy density plot:
Total energy density animation

Solitary wave-step interaction (computation is done with a spectral method. Illustration to article: Dissipative Boussinesq equations):
step.avi
Solitary wave-step interaction (the same computation as in the left but we represent a 2d cut along y = 0):
cut2d.avi

Simulation of tsunami generation with active/passive approaches. Bottom deformation is computed by FEM (illustration to paper "Fault Dynamics and Tsunami Generation"):
fault2dyn.avi
Linearized water wave problem for tsunami generation modelling: case of instantaneous bottom motion (animation to our paper: Water Waves generated by a moving bottom):
Free surface animation


TEACHING

I give essentially practical classes (Travaux Dirigés) for third-year students at the Department of Mathematics, ENS Cachan. These students prepare agrégation (civil service competitive examination for some positions in the public education system). The lectures are given by Frédéric Pascal, Jean-Michel Ghidaglia and Frédéric Dias.

Students use MatLab as programming language for numerical solution of formulated in exercises problems.

I have been assisting in teaching the following subjects: Supervision activities:

SCIENTIFIC SOFTWARE

In my work I use the following libraries and scientific software:

LINKS

Personal pages:
Mathematics & Oceanography community site:
http://mathocean.math.cnrs.fr/

Research Network "Vulnerability of structures undergoing a natural or technological hazard":
http://vor.grenoble-inp.fr/

Links to scientific software lists:

DOWNLOADS


My passion: mountain bike, cross country and Ukraine :)

DDS, VTT and Lac du Bourget My Rockrider

I am Ukrainian!
I am Ukrainian!


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