Threedimensional Euler flow simulation on a Cyber 205 vector computer
Abstract
A computational method for solving the three dimensional Euler equations, based on an upwind fluxdifference splitting scheme by Osher, exhibiting an implicit mechanism for numerical viscosity, with an explicit timemarching finite volume technique is studied. The computer program runs efficiently on a scalar computer and the Cyber 205 vector computer. Demands made by the necessity of vectorizability of the code, on algorithm, data structuring, and the code itself, are discussed. The large data sets involved appear to impose severe claims on central memory size, I/O devices, and line connections. The method is tested for a transonic and supersonic quasi two dimensional channel flow. The Euler model is found to give an accurate simulation of aerodynamic phenomena in the channel.
 Publication:

NASA STI/Recon Technical Report N
 Pub Date:
 March 1985
 Bibcode:
 1985STIN...8714656K
 Keywords:

 Cdc Cyber 205 Computer;
 Computational Fluid Dynamics;
 Euler Equations Of Motion;
 Three Dimensional Models;
 Algorithms;
 Cauchy Problem;
 Difference Equations;
 Hyperbolic Functions;
 Run Time (Computers);
 Three Dimensional Flow;
 Vectors (Mathematics);
 Fluid Mechanics and Heat Transfer