DEVELOPMENT AND OPERATION OF AN ELECTRICAL-RESISTANCE AIR HEATER FOR THE ARL TWENTY-INCH HYPERSONIC WIND TUNNEL.

Abstract

An electrical resistance heater has been designed and fabricated to preheat the air in the 20-inch hypersonic wind tunnel of the Fluid Dynamics Facilities Laboratory located at Wright-Patterson Air Force Base. The heater was designed to heat air to 2800R at mass flow ranges of one-half pound per second to ten pounds per second. Stagnation pressure can be varied between 600 psi to 2500 psi. The report traces the development of the present heater and includes a heat transfer analysis required to design this type of heater. In addition, a comparison is made between experimental and theoretical results. The heater described in the report has been successfully operated for several hundred hours during a three year period. The report presents recommendations that might be made to improve this highly essential component. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1965
Accession Number
AD0628614

Entities

People

  • David H. Murray
  • Richard T. Goddard

Tags

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Air Heaters
  • Electrical Resistance
  • Fluid Dynamics
  • Heat Transfer
  • Heaters
  • Hypersonic Wind Tunnels
  • Mass Flow
  • Research Facilities
  • Resistance
  • Stagnation Pressure
  • Test Facilities
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerospace Research.
  • Combustion and Flow Dynamics.
  • Software Engineering

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow