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Stagnation enthalpy vs. static enthalpy?

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Old   March 3, 2004, 08:17
Default Stagnation enthalpy vs. static enthalpy?
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BK
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My case is transient, supersonic( inviscid flow), compressible flow. In methodology of STAR-CD, "stagnation enthalpy" is recommened as thermal calcualation. And we must determine stagnation temperature. But in my case temperature in INLET is varied from 300 to 5000K. How do I determine stagnation temperature? So, I used the "thermal enthalpy" option about above case. Isn't this result resonable?
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Old   March 3, 2004, 09:25
Default Re: Stagnation enthalpy vs. static enthalpy?
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Richard
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You should obtain good results with thermal enthalpy. Since the flow is high-speed, I would suggest total enthalpy, but I doubt the results will be much different. I don't think you can use stagnation enthalpy unless all the inflow boundaries have the same total enthalpy, which they don't in your case.
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Old   March 3, 2004, 22:29
Default Re: Stagnation enthalpy vs. static enthalpy?
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BK
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Thank you for kind answer, Richard.
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