Wave Evolution and Laminar-Turbulent Transition in Fully 3D Supersonic Flows.

Abstract

The analysis of transition in fully three-dimensional boundary layers on high-speed aircraft is hampered by the lack of a rigorous theory of instability in these flows and the lack of accurate data to evaluate approximations. To provide such data, we have in this first phase of a longer-term effort designed a computational framework for this task. This framework allows interactive computations and data analysis in connected blocks of the large physical domain on networks of computers. Theoretical studies on the stability of three-dimensional boundary layers have been performed to obtain guidance on the computational treatment of the problem. A multi-grid method specially adapted to the analysis of wave propagation in shallow domains has been developed and implemented. Testing of the code could not be completed before the project was terminated.

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Document Details

Document Type
Technical Report
Publication Date
Apr 10, 1996
Accession Number
ADA310007

Entities

People

  • Thorwald Herbert

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Boundaries
  • Boundary Layer
  • Computational Fluid Dynamics
  • Computational Science
  • Computations
  • Computers
  • Data Analysis
  • Differential Equations
  • Equations
  • Flow
  • Fluid Dynamics
  • Fluid Mechanics
  • Graphical User Interface
  • Layers
  • Supersonic Flow
  • Three Dimensional

Fields of Study

  • Physics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Fluid Mechanics and Fluid Dynamics.
  • Systems Analysis and Design

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Boundary Layers
  • Hypersonics - Hypersonic Flow