Turbulent Boundary Layer Induced by Thermal Precursor.

Abstract

An approximate model is presented for estimating the turbulent boundary layer within a thermal precursor generated by the interaction of a shock moving with uniform velocity over a thin semi-infinite heated fluid layer. An unsteady momentum integral formulation is used. The subject boundary layer is related to the shock tube wall boundary layer, to the boundary layer induced by passage of a chock wave over a semi-infinite plate, and to the boundary layer induced by the impulsive by the impulsive motion of a semi-infinite plate. In all cases, the maximum boundary layer thickness and minimum wall shear occur at the streamwise station xi sub m = theta/delta** which connects a similarity solution for xi < xi sub m with a similarity solution for xi > xi sub m. A similar result is deduced for the corresponding case of a laminar boundary layer, with xi sub m = 7/9 and 0.384 for the incompressible turbulent and laminar cases, respectively.

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Document Details

Document Type
Technical Report
Publication Date
Jun 20, 1986
Accession Number
ADA173715

Entities

People

  • Harold Mirels

Organizations

  • The Aerospace Corporation

Tags

Communities of Interest

  • Advanced Electronics
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Artificial Intelligence
  • Boundary Layer
  • Chemical Kinetics
  • Chemical Reactions
  • Chemistry
  • Compound Semiconductors
  • Flow Fields
  • Fluid Dynamics
  • Fluid Mechanics
  • Laminar Boundary Layer
  • Materials
  • Physics Laboratories
  • Semiconductor Devices
  • Space Systems
  • Steady Flow
  • Steady State
  • Turbulent Boundary Layer

Fields of Study

  • Physics

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Fluid Mechanics and Fluid Dynamics.
  • Structural Dynamics.