Zobrazeno 1 - 10
of 132
pro vyhledávání: '"Michel Deville"'
Autor:
Michel Deville, Christophe Calvin, Vincent Couaillier, Marta De La Llave Plata, Jean-Luc Estivalèzes, Thiên Hiêp Lê, Stéphane Vincent
This book presents a snapshot of the state-of-art in the field of turbulence modeling, with an emphasis on numerical methods. Topics include direct numerical simulations, large eddy simulations, compressible turbulence, coherent structures, two-phase
Publikováno v:
International Journal for Numerical Methods in Fluids. 78:217-232
This study presents the vortex structure and numerical instability increase occurring when the level of elasticity is enhanced in inertial flows in planar contraction configuration for finitely extensible nonlinear elastic model by Peterlin (FENE-P)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8799e6e417bf6dcbe0a083fc4a570b0a
https://doi.org/10.1002/fld.4012
https://doi.org/10.1002/fld.4012
Publikováno v:
Open Journal of Fluid Dynamics. :339-352
In the framework of the spectral element method, a comparison is carried out on turbulent first-and second-order statistics generated by large eddy simulation (LES), under-resolved (UDNS) and fully resolved direct numerical simulation (DNS). The LES
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9764c86192b35ae725fee9033eae241
https://doi.org/10.4236/ojfd.2015.54034
https://doi.org/10.4236/ojfd.2015.54034
Publikováno v:
Nuclear Engineering and Design
Nuclear Engineering and Design, Elsevier, 2014, 267, pp.154-163. ⟨10.1016/j.nucengdes.2013.12.035⟩
Nuclear Engineering and Design, Elsevier, 2014, 267, pp.154-163. ⟨10.1016/j.nucengdes.2013.12.035⟩
International audience; In nuclear safety, some severe accident scenarios lead to the presence of fission products in aerosol form in the closed containment atmosphere. It is important to understand the particle depletion process to estimate the risk
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb02f6502960bb28b7197ce25327af12
https://doi.org/10.1016/j.nucengdes.2013.12.035
https://doi.org/10.1016/j.nucengdes.2013.12.035
Autor:
Christoph Bosshard, A. Dehbi, R. Puragliesi, Alfredo Soldati, Emmanuel Leriche, Michel Deville
Publikováno v:
Computers & Fluids. 86:210-227
Large eddy simulations of the turbulent natural convection flow in a differentially heated cavity have been carried out at a Rayleigh number of 10(9) using the spectral element method. To obtain the large eddy simulation equations, a low pass filter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40f4500aa2dea031ff5cf2d787e35c40
https://doi.org/10.1016/j.compfluid.2013.07.007
https://doi.org/10.1016/j.compfluid.2013.07.007
Publikováno v:
Computers & Fluids. 44:1-8
In this paper, a comprehensive performance review of an MPI-based high-order three-dimensional spectral element method C++ toolbox is presented. The focus is put on the performance evaluation of several aspects with a particular emphasis on the paral
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::723e3471aff56f7312e6a7514038a62f
https://doi.org/10.1016/j.compfluid.2010.11.014
https://doi.org/10.1016/j.compfluid.2010.11.014
Publikováno v:
Computers and Fluids
Computers and Fluids, Elsevier, 2011, 43 (1), pp.38-45. ⟨10.1016/j.compfluid.2010.09.004⟩
Computers and Fluids, Elsevier, 2011, 43 (1), pp.38-45. ⟨10.1016/j.compfluid.2010.09.004⟩
A spectral analysis and a multiscale study are performed on the numerical data obtained from direct numerical simulation and large-eddy simulation of the turbulent flow in a cubical lid-driven cavity. The analyzed data or signals are picked at three
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8faa44503099502ca37a773921ebafea
https://doi.org/10.1016/j.compfluid.2010.09.004
https://doi.org/10.1016/j.compfluid.2010.09.004
Publikováno v:
Journal of Non-Newtonian Fluid Mechanics. 165:1637-1653
The simulation of flows of viscoelastic fluids is a very challenging domain from the theoretical as well as the numerical modelling point of view. In particular, all the existing methods have failed to solve the high Weissenberg number problem (HWNP)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7eb5baee7e0c8673f347a4275c19209
https://doi.org/10.1016/j.jnnfm.2010.09.001
https://doi.org/10.1016/j.jnnfm.2010.09.001
Publikováno v:
Computers & Fluids. 39:1425-1438
This study presents a new algorithm developed in order to remove instabilities observed in the simulation of unsteady viscoelastic fluid flows in the framework of the spectral element method. In this study, we consider a particular model of the finit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21c4b373b2de152a20c00e15fb894369
https://doi.org/10.1016/j.compfluid.2010.05.008
https://doi.org/10.1016/j.compfluid.2010.05.008
Publikováno v:
Computers & Fluids. 38:1903-1916
The present work deals with the validation of 3D finite element model for free-surface flows. The model uses the non-hydrostatic pressure and the eddy viscosities from the conventional linear turbulence model are modified to account for the secondary
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::281744dbd4ce3491af9ce74165a93d5e
https://doi.org/10.1016/j.compfluid.2009.05.003
https://doi.org/10.1016/j.compfluid.2009.05.003