Investigation of the Development of Laminar Boundary-Layer Instabilities along a Blunted Cone

Abstract

Measurements of mean-flow and fluctuating-flow parameters were made in the boundary layer of a spherically blunted (0.7-in. radius), 7-deg (half- angle) cone in an investigation of the stability of laminar boundary layers. The flow-fluctuation measurements were made using hot-wire anemometry techniques. Flow-field profiles and model surface pressures were also measured. The testing was performed at free-stream Mach number 8 with a free-stream unit Reynolds number of 1.6-million per foot. The test equipment and techniques, and the data acquisition and reduction procedures are described. Analysis of the hot-wire anemometer data is beyond the scope of this report. Hypersonic flow, Blunt cone, Wind tunnel tests, Laminar boundary-layer surveys, Hot-wire anemometry, Boundary-layer stability.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1988
Accession Number
ADA202425

Entities

People

  • J. C. Donaldson
  • S. A. Simons

Organizations

  • Arnold Engineering Development Complex

Tags

Communities of Interest

  • Air Platforms
  • Sensors
  • Space

DTIC Thesaurus Topics

  • Accuracy
  • Acquisition
  • Air Force
  • Air Force Facilities
  • Boundary Layer
  • Boundary Layer Control
  • Data Acquisition
  • Digital Data
  • Frequency
  • Laminar Boundary Layer
  • Measurement
  • Pressure Distribution
  • Pressure Measurement
  • Test And Evaluation
  • Test Equipment
  • Test Facilities
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Fluid Mechanics and Fluid Dynamics.

Technology Areas

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