AN EXPERIMENTAL INVESTIGATION OF THE SURFACE PRESSURE AND THE LAMINAR BOUNDARY LAYER ON A BLUNT FLAT PLATE IN HYPERSONIC FLOW. VOL 1. SURFACE PRESSURE DISTRIBUTIONS ON A BLUNTED FLAT PLATE

Abstract

Pressures were measured over the surface of an unswept blunt flat plate having a cylindrical leading edge 1/2-inch in diameter. The flat plate was side-mounted in the ALOSU 12-inch continuous hypersonic wind tunnel. Separate tests were conducted with cylinders in order to obtain detailed data for the leading-edge. Stagnation temperatures were sufficiently high to eliminate condensation effects. The leading edge and cylinder pressure ratios were noted to be independent of both Mach number and Reynolds number. The flat plate pressure ratios show a small dependence on Mach number. Reynolds number effects on the plate pressure ratios were small except at the lower levels of Reynolds number where the interaction of the thickened boundary layer caused increases in pressure.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1963
Accession Number
AD0403697

Entities

People

  • G. M. Gregorek
  • JaeDong Lee
  • T. C. Nark

Organizations

  • Ohio State University

Tags

DTIC Thesaurus Topics

  • Boundary Layer
  • Contracts
  • Equations
  • Flow Fields
  • Fluid Dynamics
  • Layers
  • Leading Edges
  • Mach Number
  • Measurement
  • Mechanics
  • Pressure Distribution
  • Pressure Gages
  • Pressure Measurement
  • Pressure Transducers
  • Stagnation Temperature
  • Test Facilities
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Mathematics or Statistics

Technology Areas

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