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May 7, 2021, 04:22 |
define a new compressible material in cfx
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#1 |
New Member
Join Date: Feb 2021
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Hi, researchers.
I want to get a compressible liquid(like water at 34C), and the density can vary with absolute pressure. It's based on the Tait equation. What should I do? Should I use the expression method? additional variables? or the used function? Waiting for your reply. Thanks a lot. |
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May 7, 2021, 04:25 |
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#2 | |
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Quote:
Here is my cel code. N=7.1 D water=994.331[kg m^-3] B=300[MPa] stem 1=((Absolute Pressure+B)/(Psat+B))^(-N) D l=D water*stem 1 Psat = 0.0532506[bar] |
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May 10, 2021, 14:49 |
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#3 |
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Erik
Join Date: Feb 2011
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That may work, but why not just use the built in IAPWS IF97 Library material properties for water?
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