Accession Number : ADA337873

Title :   Explicit Integration Schemes for the Hyperbolized Navier-Stokes Equations

Descriptive Note : Final rept. 1 Jul 95-31 Dec 96

Corporate Author : MICHIGAN UNIV ANN ARBOR DEPT OF AEROSPACE ENGINEERING

Personal Author(s) : VAN Leer, Bram ; Roe, Philip L.

PDF Url : ADA337873

Report Date : 27 MAR 1997

Pagination or Media Count : 7

Abstract : Robust and accurate schemes for various 1-D hyperbolized dissipative systems with stiff source terms were developed and tested with success. A Euler preconditioning matrix that maintains the largest possible angle between the eigenvectors of the preconditioned system for the entire Mach number range, was developed in order to prevent the observed stagnation point instability, and tested with success. A Navier Stokes preconditioning matrix that restrains stable and effective for all Mach numbers and Reynolds numbers was developed and tested with success.

Descriptors :   *COMPUTATIONAL FLUID DYNAMICS, *NAVIER STOKES EQUATIONS, EIGENVECTORS, COMPRESSIBLE FLOW, PARTIAL DIFFERENTIAL EQUATIONS, MACH NUMBER, EULER EQUATIONS, INVISCID FLOW, REYNOLDS NUMBER, STAGNATION POINT, HYPERGEOMETRIC FUNCTIONS.

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE