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3D transient fixed point mesh adaptation for time-dependent problems: Application to CFD simulations
 

Summary: 3D transient fixed point mesh adaptation for
time-dependent problems: Application to CFD simulations
F. Alauzet a,*, P.J. Frey b
, P.L. George a
, B. Mohammadi c
a
INRIA, Projet Gamma, Domaine de Voluceau, Rocquencourt, BP 105, 78153 Le Chesnay Cedex, France
b
UPMC/Lab. J-L Lions, BP 187, 75252 Paris Cedex 05, France
c
Universite´ Montpellier II, Math. Dept., CC51, 34095 Montpellier Cedex 5, France
Received 3 November 2005; received in revised form 2 August 2006; accepted 11 August 2006
Available online 25 October 2006
Abstract
This paper deals with the adaptation of unstructured meshes in three dimensions for transient problems with an empha-
sis on CFD simulations. The classical mesh adaptation scheme appears inappropriate when dealing with such problems.
Hence, another approach based on a new mesh adaptation algorithm and a metric intersection in time procedure, suitable
for capturing and track such phenomena, is proposed. More precisely, the classical approach is generalized by inserting a
new specific loop in the main adaptation loop in order to solve a transient fixed point problem for the mesh­solution cou-
ple. To perform the anisotropic metric intersection operation, we apply the simultaneous reduction of the corresponding

  

Source: Alauzet, Frédéric - INRIA Paris-Rocquencourt

 

Collections: Computer Technologies and Information Sciences