Order-two decentered schemes operating on quadrangles or triangles: A comparison - Application to the calculation of vortex instabilities
Abstract
A numerical study of vortex instabilities in solid rocket motors has been carried out using a method operating on an unstructured triangular finite-element mesh, allowing a much greater mesh flexibility and the use of mesh adaptation techniques. Differences between results obtained for triangular and quadrangular meshes, which have been observed to be very significant for the test cases considered, are analyzed. Numerical dissipation has been shown to increase because of the use of triangles.
- Publication:
-
Operation of Segmented Solid Rocket Motors for Space Launchers
- Pub Date:
- 1993
- Bibcode:
- 1993ossr.proc...15C
- Keywords:
-
- Combustion Stability;
- Computational Fluid Dynamics;
- Computational Grids;
- Grid Generation (Mathematics);
- Solid Propellant Combustion;
- Vorticity;
- Finite Element Method;
- Finite Volume Method;
- Navier-Stokes Equation;
- Two Dimensional Models;
- Upwind Schemes (Mathematics);
- Spacecraft Propulsion and Power