Research on Topics in Transonic Flow Theory and Adaptive Grid Generation.

Abstract

This report summarizes work concerned with some topics connected with a transonic flow theory and also some problems in adaptive mesh procedures. The work on adaptive mesh procedures is concerned with the development of adaptive mesh strategies and solution procedures for highly clustered adaptive meshes. It has been found that the strong conservation law form of the governing equations in computational variables cannot capture the shock waves correctly for arbitrary clustering. Methods for correcting this problem have been investigated. The work on transonic flow theory is concerned with the existence of multiple solutions in full potential calculations. Since the full potential equation is difficult to analyze compared with small disturbance equation, multiple solutions have been found using transonic small disturbance theory. These results have been analyzed using the transonic integral equation theory and indicate that the transonic potential theory is not formulated uniquely.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1983
Accession Number
ADA128485

Entities

People

  • D. Nixon
  • G. H. Klopfer

Organizations

  • Nielsen Engineering & Research (United States)

Tags

Communities of Interest

  • Human Systems

DTIC Thesaurus Topics

  • Computational Fluid Dynamics
  • Computational Science
  • Demographic Cohorts
  • Differential Equations
  • Equations
  • Error Analysis
  • Euler Equations
  • Flow
  • Flow Fields
  • Grids
  • Integral Equations
  • Integrals
  • Numerical Analysis
  • Partial Differential Equations
  • Potential Theory
  • Transonic Flow
  • Viscous Flow

Fields of Study

  • Physics

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Aerodynamics.
  • Calculus or Mathematical Analysis