Abstract
A simulation program for viscous compressible flow has been developed to study the details of fluid motion and gas dynamics inside a pulse tube refrigerator. Axisymmetric two-dimensional Navier-Stokes equations are solved numerically. Simulation results inside of a basic-type pulse tube refrigerator have been reported in past research, and showed that secondary mass flow and enthalpy flux, going from the cold end to the hot end along the tube wall, contribute to the heat transfer. They also suggested that the boundary layer on the tube wall might play an important role in transferring enthalpy from the cold end to the hot end of the pulse tube.
In order to investigate the heat transfer mechanisms within the entire pulse tube refrigerator, the present research also includes the simulation of the flow and gas dynamics inside of the regenerator and after-cooler. The simulation results are compared with experimental data. The simulation results of the pulse tube temperature profile, when compared to the experiment, are seen to be in good agreement. The simulation results appear to well describe the gas dynamics and refrigeration mechanisms of the pulse tube refrigerator.
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© 2002 Kluwer Academic Publishers
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Hozumi, Y., Murakami, M., Shiraishi, M. (2002). Numerical Study of Gas Dynamics Inside of a Pulse Tube Refrigerator. In: Ross, R.G. (eds) Cryocoolers 11. Springer, Boston, MA. https://doi.org/10.1007/0-306-47112-4_46
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DOI: https://doi.org/10.1007/0-306-47112-4_46
Publisher Name: Springer, Boston, MA
Print ISBN: 978-0-306-46567-3
Online ISBN: 978-0-306-47112-4
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