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Old   March 2, 2006, 03:33
Default enthalpy
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Tomik
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Hi, I would like adding source in energy eguation. My source is S = Cp*dh/dx, where cp is specific heat, dh/dx is derivation enthalpy. How introduce derivation enthalpy to Fluent. When I writing in my udf derivation enthalpy is C_H_G(c,t) [I set: Keep temporary solver memory from being freed? [yes] ] fluent received fatal signal (ACCESS_VIOLATION)...

Please help me!!! Best regards Tomik.

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Old   March 4, 2006, 12:13
Default Re: enthalpy
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akharicha@hotmail.com
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Could be a lot of things....

1) Are you using in the same time an adaptaive mesh method based on the gradient ? if yes switch it off, and try again.

2) If Cp is constant, you can use instead C_T_G(c,t) see if it works....

for more details, please show you UDF source....
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Old   March 7, 2006, 06:34
Default Re: enthalpy
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Tomik
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Thanks for your suggestions. In my case specific heat is function temperature. How switch off adaptative mesh method??? Where is this setting? Can you explain me exlactly?

Best regards Tomik.
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