Spectral solution of the incompressible Navier-Stokes equations on the connection machine 2. Final report
Technical Report
·
OSTI ID:5844108
The issue of solving the time-dependent incompressible Navier-Stokes equations on the Connection Machine 2 is addressed, for the problem of transition to turbulence of the steady flow in a channel. The spectral algorithm used serially requires O(N(4)) operations when solving the equations on an N x N x N grid; using the massive parallelism of the CM, it becomes an O(N(2)) problem. Preliminary timings of the code, written in LISP, are included and compared with a corresponding code optimized for the Cray-2 for a 128 x 128 x 101 grid.
- Research Organization:
- National Aeronautics and Space Administration, Hampton, VA (USA). Langley Research Center
- OSTI ID:
- 5844108
- Report Number(s):
- N-89-22353; NASA-CR-181770; NAS-1.26:181770; ICASE-89-1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
INCOMPRESSIBLE FLOW
COMPUTER CALCULATIONS
NAVIER-STOKES EQUATIONS
ALGORITHMS
PARALLEL PROCESSING
PROGRESS REPORT
TRANSITION FLOW
DIFFERENTIAL EQUATIONS
DOCUMENT TYPES
EQUATIONS
FLUID FLOW
MATHEMATICAL LOGIC
PARTIAL DIFFERENTIAL EQUATIONS
PROGRAMMING
420400* - Engineering- Heat Transfer & Fluid Flow
INCOMPRESSIBLE FLOW
COMPUTER CALCULATIONS
NAVIER-STOKES EQUATIONS
ALGORITHMS
PARALLEL PROCESSING
PROGRESS REPORT
TRANSITION FLOW
DIFFERENTIAL EQUATIONS
DOCUMENT TYPES
EQUATIONS
FLUID FLOW
MATHEMATICAL LOGIC
PARTIAL DIFFERENTIAL EQUATIONS
PROGRAMMING
420400* - Engineering- Heat Transfer & Fluid Flow