Portable Parallelization of a 3D Euler-/Navier-Stokes Solver for Complex Flows

Abstract

This paper describes the portable parallelization of the FLOWer code, a large, block structured CFD solver for industrial use. Basic requirements for the parallelization are identified, and the strategies applied for its parallelization are explained. Special emphasis is put on the parallel heart of the program, the communications library CLIC-3D. Results obtained on several platforms demonstrate the success of the method chosen and allow an assessment of today's capabilities of parallel computers in CFD applications. Parallel computations of aircraft configurations of varying complexity prove that parallel computers have become operational in aircraft development