Parallel adaptive finite element analysis of viscous flows based on a combined compressible‐incompressible formulation
International Journal of Numerical Methods for Heat & Fluid Flow
ISSN: 0961-5539
Article publication date: 1 December 1997
Abstract
Describes a new finite element scheme for the large‐scale analysis of compressible and incompressible viscous flows. The scheme is based on a combined compressible‐ incompressible Galerkin least‐squares (GLS) space‐time variational formulation. Three‐ dimensional unstructured meshes are employed, with piecewise‐constant temporal interpolation, local time‐stepping for steady flows, and linear continuous spatial interpolation in all the variables. The scheme incorporates automatic adaptive mesh refinement, with a choice of various error indicators. It is implemented on a distributed‐memory parallel computer, and includes an automatic load‐balancing procedure. Demonstrates the ability to solve both compressible and incompressible viscous flow problems using the parallel adaptive framework via numerical examples. These include Mach 3 flow over a flat plate, and a divergence‐free buoyancy‐driven flow in a cavity. The latter is a model for the steady melt flow in a Czochralski crystal growth process.
Keywords
Citation
Givoli, D., Flaherty, J.E. and Shephard, M.S. (1997), "Parallel adaptive finite element analysis of viscous flows based on a combined compressible‐incompressible formulation", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 7 No. 8, pp. 880-906. https://doi.org/10.1108/09615539710193056
Publisher
:MCB UP Ltd
Copyright © 1997, MCB UP Limited