BOUNDARY LAYER INDUCED PRESSURES ON A FLAT PLATE IN UNSTEADY HYPERSONIC FLIGHT,

Abstract

A procedure was developed for the calculation of unsteady hypersonic viscous interaction pressures. The procedure is based on the idea of the tangent wedge approximation and is valid for weak interactions. Examples were worked out, using this procedure to illustrate the weak pressure interactions in unsteady hypersonic flow. The results presented are based on the available solutions for boundary layer flows, without interactions, over a flat plate which undergoes unsteady motion in its own plane. Thus the case of small deviations from steady flows and the initial stage case (or a doubly infinite plate case) were considered for both insulated and isothermal plates. Induced pressures, to first approximation, are presented and the viscous interaction parameters are brought out. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1969
Accession Number
AD0693233

Entities

People

  • Eli Reshotko
  • Tse-fou Zien

Organizations

  • Case Western Reserve University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Layer
  • Boundary Layer Flow
  • Flight
  • Flow
  • Fluid Flow
  • Hypersonic Flight
  • Hypersonic Flow
  • Layers
  • Steady Flow

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)

Technology Areas

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