A parallel finite element algorithm for calculating three-dimensional inviscid and viscous compressible flow

Conference · Fri Jan 01 04:00:00 EST 1993

OSTI ID:6457488

Brueckner, F P; Pepper, D W; Chu, R H ^[1]

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1. Advanced Project Research, Inc., Las Vegas, NV (United States) MasPar Computer Corp., Sunnyvale, CA (United States)

A finite element model is developed and used to simulate three-dimensional compressible fluid flow on a massively parallel computer. The algorithm is based on a Petrov-Galerkin weighting of the convective terms in the governing equations. The discretized time-dependent equations are solved explicitely using a second-order Runge-Kutta scheme. A high degree of parallelism has been achieved utilizing a MasPar MP-2 SIMD computer. An automated conversion program is used to translate the original FORTRAN 77 code into the FORTRAN 90 needed for parallelization. This conversion program and the use of compiler directives allows the maintenance of one version of the code for use on either vector or parallel machines. The performance of the algorithm is illustrated through its application to several example problems; execution times are presented for different computational platforms. 18 refs.

• OSTI ID: 6457488
• Report Number(s): AIAA-Paper--93-0340; CONF-930108--
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ALGORITHMS
CALCULATION METHODS
COMPRESSIBLE FLOW
FINITE ELEMENT METHOD
FLUID FLOW
GALERKIN-PETROV METHOD
IDEAL FLOW
ITERATIVE METHODS
MATHEMATICAL LOGIC
NUMERICAL SOLUTION
PARALLEL PROCESSING
PROGRAMMING
RUNGE-KUTTA METHOD
THREE-DIMENSIONAL CALCULATIONS
VISCOUS FLOW