Abstract
Numerical simulation of viscous compressible flow in basic pulse tube refrigerator is conducted to clear the working principle of refrigeration. Transient axisymmetric two-dimensional equations of continuity, momentum and energy were solved by means of CIP method. The physical simulation model is a 10mm inner diameter and 50 mm length circular pulse tube containing a 10mm heat exchanger. The two models, adiabatic wall model and non-adiabatic wall model, were used for calculation. Some numerical results were obtained on the transient behaviors of pressure and temperature distributions and the two models were compared. Heat transfer between tube wall and fluid was analyzed in non-adiabatic model.
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