An Investigation into the Real Gas Effects of Cryogenic Nitrogen in Inviscid Homentropic Flow.

Abstract

As a contribution to the investigation of the suitability of using cryogenic nitrogen as the test gas in a high Reynolds number transonic wind-tunnel, a study is made here of the real gas effects of nitrogen at low temperatures. The study, which is limited to inviscid, homentropic flow of an non-conducting gas, takes the form of an independent confirmation of results by Kilgore et al. A recent paper by Wagner and Schmidt on this subject employs a different equation of state from that used here and their investigations cover more than just homentropic flow. The new contribution in this Memorandum is that the use of a simplified equation of state enables an expression for enthalpy (and hence the terms in Bernoulli's equation) to be derived by analytic integration.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1979
Accession Number
ADA085485

Entities

People

  • C. M. Albone

Organizations

  • Royal Aircraft Establishment

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Aircrafts
  • Convergent Divergent Nozzles
  • Enthalpy
  • Equations
  • Flow
  • Foreign Languages
  • Language
  • Low Temperature
  • Mach Number
  • Nitrogen
  • Nozzles
  • Reynolds Number
  • Specific Heat
  • Test And Evaluation
  • Transonic Wind Tunnels
  • Wind Tunnels

Readers

  • Calculus or Mathematical Analysis
  • Combustion science or combustion engineering.
  • Plasma Physics / Magnetohydrodynamics