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Cn specific heat capacity changes with Temperatur?

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Old   June 26, 2006, 01:23
Default Cn specific heat capacity changes with Temperatur?
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lightgas
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i use a experssion to express specific heat capacity changes with Temperatur(just like gauss distributing),but there is a notice appeared. ****** Notice ****** | | While evaluating Temperature, | | Static Enthalpy on domain hotair | | went outside of its lower limit. Its minimum value was | | -1.1202E+08. The bounds error was handled by extrapolation. | | If this situation persists, consider increasing the table range. i try to changer the table range in the material properities, (intrease the temperature range),but the simulation result seems unreasonable? what shall i do?
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Old   June 27, 2006, 09:02
Default Re: Cn specific heat capacity changes with Tempera
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macdidi
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This expression, appers alwys when you've to take variable Cp or density depend on pressure and (or ) temperature. If this message disspears afetr a few iterrarions (2 or 3), it will not be a problem, and no influence on your final results Best regards
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Old   June 27, 2006, 10:00
Default Re: Cn specific heat capacity changes with Tempera
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lightgas
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but in my simulation,the notice didn't disappear, and the result was wrong apparaently. what shall i do?
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Old   June 27, 2006, 19:35
Default Re: Cn specific heat capacity changes with Tempera
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Robin
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As the warning says, go back to your fluid property definition and set a reasonable table range.

-Robin
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Old   July 7, 2006, 06:51
Default Re: Cn specific heat capacity changes with Tempera
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S.B.G.S
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OH MY GOD ITS SOOOOOOOOOOO HOT
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