Computational results for parallel unstructured mesh computations

Unstructured Mesh Generation For Viscous Flow Computations

This paper presents a robust and automated approach to generate unstructured hybrid grids comprised of tetrahedra, prisms, and pyramids for high Reynolds number flow computations. The hybrid mesh generation starts with isotropic tetrahedral grids to enhance the robustness. The tetrahedra near no-slip walls are shifted inward and the resulting gap between the tetrahedra and the walls is filled u...

Parallel Unstructured Mesh Partitioning

76 Parallel Unstructured Mesh

The use of unstructured mesh codes on parallel machines can be one of the most e cient ways to solve large Computational Fluid Dynamics (CFD) and Computational Mechanics (CM) problems. Completely general geometries and complex behaviour can readily be modelled and, in principle, the inherent sparsity of many such problems can be exploited to obtain excellent parallel e ciencies. An important co...

Parallel Library for Unstructured Mesh Problems (PLUMP)

The growing class of applicationswhich solve partial differential equations (PDEs) on unstructured adaptive meshes is considered. Solution to such sparse, non-symmetric and in most cases ill-conditioned systems is often obtained using iterative methods. This paper describes the specification and implementationof the Parallel Library for Unstructured Mesh Problems (PLUMP), which supports the tra...

Paper Submitted To: Third National Symposium on Large-scale Structural Analysis for High-performance Computers and Workstations Computational Results for Parallel Unstructured Mesh Computations

The majority of nite element models in structural engineering are composed of unstructured meshes. These unstructured meshes are often very large and require signiicant computational resources; hence they are excellent candidates for massively parallel computation. Parallel solution of the sparse matrices that arise from such meshes has been studied heavily, and many good algorithms have been d...