Composite Velocity Procedures for Flows with Pressure Interaction.

Abstract

The composite velocity formulation for the Euler and Reduced Navier-Stokes system of equations has been investigated. For transonic steady flow over airfoils a combination of conservative and nonconservative flux directional systems of difference equations have been developed and applied to obtain full potential, Euler and Reduced Navier Stokes solutions. The Enquist Osher procedure for shock capturing has been adapted for these applications to obtain sharp shock waves for both potential and Euler equations. For two dimensional transient flows and for three dimensional global relaxation computations, the coupled strongly implicit matrix inversion algorithm has been reformulated in order to allow for time consistency and space marching efficieny, respectively. Keywords: Composite velocity procedure; Numerical methods; Euler equations; Navier Stokes equations; Strongly implicit procedure.

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Document Details

Document Type
Technical Report
Publication Date
Mar 17, 1986
Accession Number
ADA179602

Entities

People

  • Prem K. Khosla
  • Stanley G. Rubin

Organizations

  • University of Cincinnati

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Boundary Layer
  • Coefficients
  • Computational Fluid Dynamics
  • Computational Science
  • Consistency
  • Difference Equations
  • Fluid Dynamics
  • Fluid Mechanics
  • Hydrodynamics
  • Mechanics
  • Navier Stokes Equations
  • Reynolds Number
  • Steady Flow
  • Steady State
  • Three Dimensional
  • Two Dimensional
  • Viscous Flow

Fields of Study

  • Physics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)

Technology Areas

  • Space