THE EQUILIBRIUM TEMPERATURE PROBE. A DEVICE FOR MEASURING TEMPERATURES IN HYPERSONIC BOUNDARY LAYERS

Abstract

The equilibrium temperature probe is a device which may be used to determine the flow temperature in a hypersonic boundary layer. It consists of a sharp, small angled cone of low emissivity metal supported by a thermal insulator. A thermocouple is installed to measure the cone temperature. The cone is held with its axis parallel to the flow. Ideally, the indicated temperature is the adiabatic wall temperature, a property of the flow which when combined with other more easily obtained properties and established relationships provides sufficient information to determine the total temperature of the flow. The equilibrium temperature probe can be made very small without excessive conduction and radiation effects. This is the main advantage obtained from using the equilibrium temperature probe over the conventional totaltemperature probe. In addition, the conical configuration minimizes the probe's interference with the flow.

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Document Details

Document Type
Technical Report
Publication Date
Dec 04, 1961
Accession Number
AD0439624

Entities

People

  • James E. Danberg

Organizations

  • Naval Ordnance Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerodynamics
  • Boundary Layer
  • Engineering
  • Equations
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Heat Transfer
  • Heat Transfer Coefficients
  • Mechanical Properties
  • Munitions
  • New York
  • Ordnance Laboratories
  • Physics Laboratories
  • Prandtl Number
  • Reynolds Number
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Combustion science or combustion engineering.
  • Electrical Engineering

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Boundary Layers
  • Microelectronics
  • Microelectronics - Graphene