Accession Number : ADA332506

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

Descriptive Note : Final technical 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 : ADA332506

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 remains stable and effective for all Mach numbers and Reynolds numbers was developed and tested with success.

Descriptors :   *COMPUTATIONAL FLUID DYNAMICS, *COMPRESSIBLE FLOW, NUMERICAL INTEGRATION, MACH NUMBER, NAVIER STOKES EQUATIONS, INVISCID FLOW, REYNOLDS NUMBER, STAGNATION POINT.

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE