A Lagrange multiplier/fictitious domain method for the numerical simulation of incompressible viscous flow around moving rigid bodies: (I) case where the rigid body motions are known a priori
✍ Scribed by Roland Glowinski; Tsorng-Whay Pan; Jacques Periaux
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 546 KB
- Volume
- 324
- Category
- Article
- ISSN
- 0764-4442
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✦ Synopsis
We describe in this Note a method t'ot-the numerical simulation of incompressible viscous flow around moving rigid bodies; we suppose the rigid body motions LI /~Gri known. The computational technique takes advantage of a time discretization by operator splitting a la Marchuk-Yanenko and of a finite element space discretization on a fixed mesh, to combine a Lagrange multiplier/tictitious domain treatment of the rigid body motions with an L"-projection technique, to force the incompressibility condition. The results of numerical experiments concerning flow around moving disks at Reynolds number-of the order of 100 are presented.