An Unstructured - Grid , Parallel , ProjectionSolver for Computing Low - Speed FlowsMark

An Unstructured-Grid, Parallel, Projection Solver for Computing Low-Speed Flows

This paper presents an overview of the issues associated with applying a domain-decomposition message-passing paradigm to the parallel implementation of both explicit and semi-implicit projection algorithms. The use of an element-based domain decomposition with an e cient solution strategy for the pressure eld is shown to yield a scalable, parallel solution method capable of treating complex ow...

Integrated flow and stress using an unstructured mesh on distributed memory parallel systems

Domain decompositionmethods can be successfully applied to the parallelisation of existing unstructured mesh computational mechanics codes. Such codes tend to be large and so a structured approach to their parallelisation is required. Algorithmic modification of order dependant iterative solvers is inevitable, but shown to be of little consequence. A well balanced mesh partition may be demonstr...

Adaptive Solution of Steady Two Dimensional Flow on an Unstructured Grid

Two-dimensional Euler equations have been solved on an unstructured grid. An upwind finite volume scheme, based on Roes flux difference splitting method, is used to discretize the equations. Using advancing front method, an initial Delaunay triangulation has been made. The adaptation procedure involves mesh enrichment coarsening in regions of flow with high low gradients of flow properties, acc...

Enhanced Dynamic Load-Balancing of Adaptive Unstructured Meshes

Modern PDE solvers increasingly use adaptive unstructured meshes in order to discretise complex geometries and control numerical error The problem of dividing up the domain equally for a distributed memory parallel computer whilst minimising the inter subdomain dependencies can be tackled with graph based methods such as Recursive Spectral Bisection This paper describes an extension to such met...

On Efficiency of an Unstructured Grid Generation Method for Aerospace Applications