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Equation for Heat and Mass Flow of non-Newtonian Fluid Through Porous Media: Liquid Helium II - Helium - 4 Vapor Separation
Jeffery M. Lee
NASA AMES Research Center
Moffett Field, CA
S.W.K. Yuan, W.A. Hepler and T.H.K. Frederking
University of California, Los Angeles
Los Angeles, CA 90024, U.S.A.
In novel phase separator systems well-defined venting of vapor from liquid is accomplished by means of porous plugs using the fountain effect as liquid-retaining phenomenon. A small finite mass flow is superposed on the heat transport rate associated with zero net mass flow. The present work focuses on transport in one case and semi-classical convection in the other case. Data obtained up to this time have shown partial agreement with the well known He II two-fluid description. However in the data range covered by present and other experiments the difference between the two heat transport rate predictions is small compared to porous media tolerance and resolution. Download this Paper
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About the author- Dr. Sidney Yuan is a consultant in the field of Low Temperature Physics and Cryogenics, and has written a Book on Cryogenics and published extensively in the field. E-Mail.
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