Advances in Cryogenic Engineering pp 107-114

Part of the Advances in Cryogenic Engineering book series (ACRE, volume 39)

Structural Cooldown Energy Optimization for Cryogenic Wind Tunnels

  • S. Balakrishna
  • W. A. Kilgore
Chapter

Abstract

High Reynolds number cryogenic nitrogen tunnels usually have considerable mass of structural metal within the insulated test environment. Prior to high Reynolds number aerodynamic testing, this internal structure is cooled from ambient temperature to 120K using liquid nitrogen. This paper studies the structural cooldown as a problem of optimizing liquid nitrogen consumption and time for the U.S National Transonic Facility. A simple model of the tunnel thermodynamic process is used to study the optimization and cooldown strategies via nonlinear dynamical simulation.

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References

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Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • S. Balakrishna
    • 1
  • W. A. Kilgore
    • 1
  1. 1.Vigyan Inc.HamptonUSA

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