Accession Number : ADA295661

Title :   Implicit Schemes and Parallel Computing in Unstructured Grid CFD.

Descriptive Note : Contractor rept.,

Corporate Author : INSTITUTE FOR COMPUTER APPLICATIONS IN SCIENCE AND ENGINEERING HAMPTON VA

Personal Author(s) : Venkatakrishnan, V.

PDF Url : ADA295661

Report Date : APR 1995

Pagination or Media Count : 63

Abstract : The development of implicit schemes for obtaining steady state solutions to the Euler and Navier-Stokes equations on unstructured grids is outlined. Applications are presented that compare the convergence characteristics of various implicit methods. Next, the development of explicit and implicit schemes to compute unsteady flows on unstructured grids is discussed. Next, the issues involved in parallelizing finite volume schemes on unstructured meshes in an MIMD (multiple instruction/multiple data stream) fashion are outlined. Techniques for partitioning unstructured grids among processors and for extracting parallelism in explicit and implicit solvers are discussed. Finally, some dynamic load balancing ideas, which are useful in adaptive transient computations, are presented. (AN)

Descriptors :   *PARALLEL PROCESSING, *COMPUTATIONAL FLUID DYNAMICS, ALGORITHMS, STEADY STATE, TRANSIENTS, OPTIMIZATION, DATA MANAGEMENT, DISTRIBUTED DATA PROCESSING, TIME DEPENDENCE, GRIDS, FLOW VISUALIZATION, MESH, COMPRESSIBLE FLOW, SOLUTIONS(GENERAL), LEAST SQUARES METHOD, ADAPTIVE SYSTEMS, CONVERGENCE, DYNAMIC LOADS, TWO DIMENSIONAL FLOW, UNSTEADY FLOW, NAVIER STOKES EQUATIONS, RUNGE KUTTA METHOD.

Subject Categories : Computer Programming and Software
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE