Godunov type method on non-structural meshes for three-dimensional moving boundary problems
Abstract
This paper presents a numerical method for the computation of compressible flow in domains whose boundaries move in a well defined predictable manner. The method uses the space-time formulation by Godunov while the discretization is conducted on nonstructured tetrahedral meshes, using Roe's approximate Riemann solver, an implicit time stepping, and a MUSCL-type interpolation. The computation of the geometrical parameters required to take into account the movement of the boundaries is described. Examples including the calculation of the flow in the cylinder of an internal combustion engine illustrates the possibilities of the method.
- Publication:
-
Computer Methods in Applied Mechanics and Engineering
- Pub Date:
- March 1994
- DOI:
- 10.1016/0045-7825(94)90218-6
- Bibcode:
- 1994CMAME.113..183N
- Keywords:
-
- Boundary Value Problems;
- Compressible Flow;
- Computational Fluid Dynamics;
- Computational Grids;
- Three Dimensional Flow;
- Internal Combustion Engines;
- Interpolation;
- Time Marching;
- Fluid Mechanics and Heat Transfer