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Sachindra Kumar Rout
NIT ROURKELA
Earth & Planetary Sciences Environmental Science Materials Science & Nanotechnology Mathematics Physics

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A Thermally Non-equlibirium Approch for CFD Simulation of a Pulse Tube Refrigerator Sachindra Kumar Rout
International Journal of Advances in Applied Sciences Vol 3, No 2: June 2014
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (430.575 KB) | DOI: 10.11591/ijaas.v3.i2.pp65-69

Abstract

This paper deals with a new type of numerical computational fluid dynamic (CFD) approach of making more realistic to the porous media inside the regenerator of a pulse tube refrigerator. The available commercial software package FLUENT for solving Computational fluid dynamics (CFD) has capable of define a porous media and solve the governing equation for this region. But one problem arises is that inside the porous media region the software  consider the fluid medium temperature and solid matrix medium temperature remains same in any spatial location which is impractical in real case. So to avoid this impractical situation we made attempt to make a non-thermally equilibrium medium inside the regenerator by putting a solid inside the regenerator, a size equal with solid matrix and added the source  term to the fluid and solid of the regenerator by user define functions (UDF). In this analysis we used inertance tube pulse tube refrigerator (ITPTR) and helium is the working fluid.
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