FN Archimer Export Format
PT J
TI A self-regularising DVM–PSE method for the modelling of diffusion in particle methods
BT 
AF MYCEK, PAUL
   PINON, Gregory
   GERMAIN, Gregory
   RIVOALEN, Elie
AS 1:1,2;2:1;3:2;4:1,3;
FF 1:PDG-REM-RDT-LCSM;2:;3:PDG-REM-RDT-LCSM;4:;
C1 Univ Havre, Lab Ondes & Milieux Complexes, CNRS, UMR 6294, F-76058 Le Havre, France.
   IFREMER, Marine Struct Lab, F-62321 Boulogne, France.
   INSA Rouen, Lab Optimisat & Firibilite Mecan Struct, EA 3828, F-76801 St Etienne, France.
C2 UNIV LE HAVRE, FRANCE
   IFREMER, FRANCE
   INSA ROUEN, FRANCE
SI BOULOGNE
SE PDG-REM-RDT-LCSM
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 1.052
TC 3
UR https://archimer.ifremer.fr/doc/00159/27006/25254.pdf
LA English
DT Article
DE ;Particle method;Diffusion;DVM;PSE
AB The modelling of diffusive terms in particle methods is a delicate matter and several models have been proposed in the literature. The Diffusion Velocity Method (DVM) consists in rewriting these terms in an advective way, thus defining a so-called diffusion velocity. In addition to the actual velocity, it is used to compute the particles displacement. On the other hand, the well-known and commonly used Particle Strength Exchange method (PSE) uses an approximation of the Laplacian operator in order to model diffusion. This approximation is based on an exchange of particles strength.  Although DVM is particularly well suited to particle methods since it preserves their Lagrangian aspect, its major drawback stems in the fact that it suffers from severe singular behaviours. This paper intends to give insights and ideas for coping with these issues, based on an exact decomposition of the diffusion coefficient allowing a hybrid DVM–PSE treatment of diffusive terms.
PY 2013
PD SEP
SO Comptes Rendus Mecanique
SN 1631-0721
PU Elsevier France-editions Scientifiques Medicales Elsevier
VL 341
IS 9-10
UT 000327825500008
BP 709
EP 714
DI 10.1016/j.crme.2013.08.002
ID 27006
ER

EF