Roger LEWANDOWSKI
Full Professor, Institut de Recherche Mathématiques de Rennes UMR CNRS 6625, University Rennes 1;
ODYSSEY Team INRIA; Centre Henri Lebesgue France.
Member of the board of directors of Rennes 1 University
Member of the of the board of directors of the SMAI (Société de Mathématiques Appliquées et Industrielles)
and local correspondent in Rennes
Research area : Mathematical fluid dynamic, Partial differential
equations, functional analysis.
address : IRMAR , (Institut de Recherche Mathématiques de Rennes), UMR CNRS 6625, Université Rennes1, Campus
Beaulieu, 35042 Rennes cedex, France
Tel : 00 (33) 2 23 23 58 64
Tel Secretary : 00 (33) 2 23 23 60 07
E-mail: Roger.Lewandowski at univ-rennes1.fr
Curriculum Vitae (including the complete list of publications and PhD students)
Four last years publications
Current Ph D Students
The book
Analyse mathématique et océanographie
is now avaible on HAL , in its original form, as published in 1997.
Four last years publications
- TKE model involving the distance to the wall. Part 1: the relaxed case, (with C. Amrouche and G. Leloup),
submitted, Paper on HAL
- Surface boundary layers through a scalar equation with an eddy viscosity vanishing at the ground, (with Luigi C. Berselli and F. Legeais),
submitted, Paper on HAL
- On the existence of weak solutions for a family of unsteady rotational Smagorinsky models, (with Luigi C. Berselli, Alex Kaltenbach, Michael Ruzicka) Pure Appl. Funct. Anal., Vol 8, nb 1, pp. 83-102, 2023
Paper on Arxiv
- Continuous boundary condition at the interface for two coupled fluids, (with F. Legeais),
Applied Maths Letters, 135, Paper No. 108393, 2023, Paper on HAL
- Testing a one-closure equation turbulence model in neutral boundary layers, (with Pranav Chandramouli, Etienne Mémin, Benoît Pinier) Computer Methods in Applied Mechanics and Engineering, 376, 113662, 2021
Paper on HAL
-
Rotational forms of Large Eddy Simulation turbulence models: modeling and mathematical theory (with L. Berselli, and D.-D. Nguyen) Chinese Annals of Maths, serie B, 42(1), 1-24, 2021, Paper on HAL
-
Modeling Error of the $\alpha$-Models of Turbulence in Two dimensions in the Periodic Case (with L. Berselli, A. Dunca and D.-D. Nguyen) on line in Discrete and Continuous Dynamical Systems Series B, Vol. 26, no. 9, 4613-4643, 2021 Paper on DCDS-B
- On a one dimensional turbulent boundary layer model, Pure Appl. Funct. Anal. Vol 5, no. 5, 1115-1129, 2020,
Paper on arxiv
- Turbulent flows as generalized Kelvin-Voigt materials: modeling and analysis, (with C. Amrouche, L. Berselli and D.-D. Nguyen) Journal of Nonlinear Analysis TMA, Vol 196, 111790, 2020, Paper on arxiv
- Long-Time Reynolds Averaging of Reduced Order Models for Fluid Flows: Preliminary Result, (with L. Berselli, T. Iliescu, B. Koc) Mathematics in Engineering, Vol 2, No 1, 1-25, 2020,
Paper on Math. Ing.
- On the Reynolds time-averaged equations and the long-time behavior of
Leray-Hopf weak solutions, with applications to ensemble averages, (with L. Berselli) Nonlinearity, Vol 32, No 11, 4579-4608, 2019,
Paper on Non
- Stochastic flow approach to model the mean velocity profile of wall-bounded flows, (with Benoît Pinier, Etienne Mémin, Sylvain Laizet) Physical Review E, 99 , 063101, 2019,
Paper on Phys. Rev.
- Navier-Stokes equations in the whole space with an eddy viscosity, Journal of Mathematical Analysis and Applications, Vol. 478, No 2, 698-742, 2019,
Paper on JMAA
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Current Ph D Students
- Guillaume Leloup, Subject of the Thesis: Numerical methods for the coupling of two turbulent fluids
Beginning of the thesis : October 2022.
- François Legeais ,
Email :
Francois.Legeais at univ-rennes1.fr
Subject of the Thesis: Turbulent ocean-atmosphere mixing layer
Beginning of the thesis : October 2021.
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Slides of current presentations
- Coupling of two incompressible fluids with a fixed interface, Sevilla (Spain) 13th December 2022, Slides of the talk
- Stokes and Navier-Stokes equations with friction laws at the boundary of the domain and coupling of two fluids, Jaca (Spain) 8th September 2022, Slides of the talk