Optimization Based Reference Matrix Rezone Strategies for Arbitrary Lagrangian-Eulerian Methods on Unstructured Grids
- Mikhail J.
- Patrick M.
The objective of the Arbitrary Lagrangian-Eulerian (ALE) methodology for solving multidimensional fluid flow problems is to move the computational mesh, using the flow as a guide, to improve the robustness, accuracy and efficiency of the simulation. A principal element is the rezone phase in which the computational ('rezoned') mesh is created that is adapted to the fluid motion. Here they describe a general rezone strategy that ensures the geometric quality of the computational mesh, while keeping it as close as possible to the Lagrangian mesh. In terminology of mesh generation community our method can be classified as a two-stage smoothing algorithm. They provide numerical examples to demonstrate the robustness and the effectiveness of our methodology.
- Research Organization:
- Los Alamos National Laboratory
- Sponsoring Organization:
- DOE
- OSTI ID:
- 975352
- Report Number(s):
- LA-UR-01-2948
- Country of Publication:
- United States
- Language:
- English
Similar Records
Arbitrary Lagrangian–Eulerian methods for modeling high-speed compressible multimaterial flows
An Arbitrary Lagrangian-Eulerian Discretization of MHD on 3D Unstructured Grids