Some Computational Fluid Dynamics Applications on the Intel iPSC/2
Several fluid-dynamics codes have been ported to the Intel iPSC/2. In particular, Nekton* is a package for modelling the incompressible Navier-Stokes equations. Nekton is based on spectral elements and incorporates a conjugate-gradient solver. The elements are distributed over the nodes of the iPSC/2 and the solver uses a microcoded matrix-matrix product on each node to obtain performance of 10 MFlops per node. Passage* is a package for modelling the steady Navier-Stokes equations for internal flows such as ducts and turbines. It uses a block-structured finite-difference approach to domain decomposition which lends itself naturally to parallel implementation. FLO87* is a compressible Navier-Stokes code using finite-volume multigrid methods for fast convergence on steady flows. Its logically cubical computational domain is divided into blocks to be distributed over the iPSC. Each of these codes has a straight-forward parallel decomposition because of the regularity of its data structures and dependencies.
KeywordsCoarse Grid Spectral Element Steady Solution Transonic Flow Spectral Element Method
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- Ecer, A., Akay, H.U., and Sheu, W.H., 1986 Variational Finite Element Formulation for Viscous Compressible Flows, Symposium on Numerical Methods for Compressible Flows. ASME Winter Meeting, Anaheim, California, December 7–12.Google Scholar
- Jameson, A., 1987 Successes and challenges in computational aerodynamics, AIAA 87–1184-VPCP.Google Scholar