A parallel incompressible Navier-Stokes solver with multigrid iterations
- California Institute of Technology, Pasadena, CA (United States)
We developed a parallel, numerically accurate and stable, and computationally efficient finite-difference incompressible Navier-Stokes (N-S) fluid flow solver. The solver runs on both sequential and massively parallel computers. The numerical method used here is a second-order projection method on a staggered grid. A multigrid scheme is used to speed up the solutions of velocity and pressure equations at each time step. A domain-decomposition strategy is used for parallelizing both the projection method and the multigrid scheme on fine and coarse grids. The solver runs on any (logical) rectangular processor meshes. The parallel solver was implemented in C with Intel NX and MPI interfaces for message-passing. The code is highly modular and it can be used either as a stand-alone flow solver and or a template code which can be adapted or expanded to a specific application. Numerical results and parallel performances of our code on Intel Delta and Paragon are reported.
- OSTI ID:
- 125489
- Report Number(s):
- CONF-950212-; TRN: 95:005768-0033
- Resource Relation:
- Conference: 7. Society for Industrial and Applied Mathematics (SIAM) conference on parallel processing for scientific computing, San Francisco, CA (United States), 15-17 Feb 1995; Other Information: PBD: 1995; Related Information: Is Part Of Proceedings of the seventh SIAM conference on parallel processing for scientific computing; Bailey, D.H.; Bjorstad, P.E.; Gilbert, J.R. [eds.] [and others]; PB: 894 p.
- Country of Publication:
- United States
- Language:
- English
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