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Old   May 24, 2004, 09:22
Default Specific heat
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I'm using 2 mass fraction equation in cfx 4.4.

If I use USRSPH routine I can only set the Cp of all the mixture? Or I can set the value of the Cp of the background fluid?


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Old   May 30, 2004, 01:55
Default Re: Specific heat
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If your mass fractions are very small (ie. trace amounts) you can get away with setting the background fluid only. Otherwise, yes, you need to set the mixture CP and CPBAR. Fortunately this is easy as it is a straight mass fraction weighted summation of each component including the background fluid.

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