Accession Number : ADA189586

Title :   Splitting Methods for Low Mach Number Euler and Navier-Stokes Equations.

Descriptive Note : Final rept.,

Corporate Author : INSTITUTE FOR COMPUTER APPLICATIONS IN SCIENCE AND ENGINEERING HAMPTON VA

Personal Author(s) : Abarbanel, Saul ; Dutt, Pravir ; Gottlieb, David

PDF Url : ADA189586

Report Date : May 1987

Pagination or Media Count : 28

Abstract : In this paper, we examine some splitting techniques for low Mach number Euler flows. We point out shortcomings of some of the proposed methods and suggest an explanation for their inadequacy. We then present a symmetric splitting for both the Euler and Navier-Stokes equations which removes the stiffness of these equations when Mach number is small. The splitting is shown to be stable.

Descriptors :   *NAVIER STOKES EQUATIONS, EQUATIONS, MACH NUMBER, SPLITTING, STIFFNESS, SYMMETRY, INCOMPRESSIBLE FLOW, SUBSONIC CHARACTERISTICS, FOURIER TRANSFORMATION

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE