Two-Dimensional Analysis of Enthalpy Flow in a Pulse Tube

맥동관의 엔탈피유동에 대한 2차원 해석

  • 백상호 (홍익대학교 대학원 기계공학과) ;
  • 장승철 (홍익대학교 대학교 기계공학과) ;
  • 정은수 (홍익대학교 기계공학과)
  • Published : 1999.05.01

Abstract

Enthalpy transport in a pulse tube was investigated by two-dimensional analysis of mass. momentum an energy equations of the gas as well as energy conservation of the tube wall. The mean temperature of the gas and the tube wall was obtained directly by assuming that the outer surface of a pules tibe wall is adiabatic. Axial profile of mean temperature is small. but it deviates significantly from linear profile when the dimensionless frequency is large. Effect of operating frequency. tube wall thickness, velocity ratio and velocity phase angle between both ends of a pulse tube on net enthalpy flow were shown.

Keywords

References

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