Accession Number : ADA186254

Title :   Analysis of Three-Dimensional Viscous Internal Flows.

Descriptive Note : Final rept. Jul 85-Sep 86,

Corporate Author : CINCINNATI UNIV OH DEPT OF AEROSPACE ENGINEERING AND ENGINEERING MECHANICS

Personal Author(s) : Ghia, Kirti N ; Ghia, Urmila

PDF Url : ADA186254

Report Date : 31 Mar 1987

Pagination or Media Count : 47

Abstract : A fifteen-month multi-tasked research project was pursued by the present investigators to study complex viscous flows under AFOSR sponsorship between July 1985 and September 1986. The major objective of this study was to require improved understanding of viscous flows and to develop basic computational methods for efficient determination of 2-D/3-D subsonic and incompressible flows. Two major analyses were pursued. These include the Interacting Parabolized Navier-Stokes (IPNS) analysis for steady flows and the full Navier-Stokes (NS) analysis for direct simulation of unsteady flows. The IPNS analysis developed employs no ad hoc artificial dissipation and, in spite of being a density-based formulation, performs well even for very low Mach numbers. The applications considered include 2-D cascades and channels of simple geometry. Keywords: Viscous Flows, Flow separation, Unsteady flows, Interacting equations, Multi Block structured grids, Three dimensional flows.

Descriptors :   *NAVIER STOKES EQUATIONS, *UNSTEADY FLOW, *VISCOUS FLOW, DETERMINATION, DISSIPATION, EFFICIENCY, EQUATIONS, GRIDS, INTERACTIONS, MACH NUMBER, NUMERICAL METHODS AND PROCEDURES, SIMULATION, STEADY FLOW, FLOW SEPARATION, THREE DIMENSIONAL FLOW, SUBSONIC FLOW, INCOMPRESSIBLE FLOW, CASCADES(FLUID DYNAMICS), GRIDS(COORDINATES)

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE