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Validation of an integrated modelling tool for the study of pulse tube coolers.

Author(s) : GIBSON A. S., NIKANPOUR D.

Summary

Fluid models of a miniature pulse tube cooler are used to assess the feasibility of using a commercial fluid simulation tool for design and optimization purposes. Validation of initial coupled fluid models is provided via comparison with a lab prototype. The analysis incorporates coupled solutions of conductive and convective heat transfer in a realistic 3-D in-line pulse tube configuration, with consideration for compressibility and turbulence of the helium gas. Initial studies focus on establishing capability to determine phase relationships of fluid properties and spatial variations in enthalpy flow rate. Flow parameters from testing of a prototype pulse tube cryocooler are compared with analytical results obtained using the computational fluid dynamics software. Interpretation of the results demonstrates the usefulness of the model in diagnosis of key performance issues with the prototype.

Details

  • Original title: Validation of an integrated modelling tool for the study of pulse tube coolers.
  • Record ID : 2008-1054
  • Languages: English
  • Publication date: 2006/06/14
  • Source: Source: Proc. 14th int. Cryocooler Conf., Annapolis, MD
    307-316; fig.; phot.; tabl.; 5 ref.

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