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Maximum vapor saturation pressure exceed with evaporation model

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Old   July 6, 2015, 06:36
Default Maximum vapor saturation pressure exceed with evaporation model
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Wang Ming
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Hello, everyone. I have some trouble with evaporation model(Thermal bubbles with phase change). A high density heat flux was applied to the materials in my calculation. The initial environment pressure was 100Pa and the vapor can flow through the boundary of calculation zone. Outflow boundary condition was chosen in the simulation.
A waning message was given after preprocess simulation. The message was as follows:
** warning if Clapeyron equation is used for saturation curve the equation will fail if pressure exceeds p=3.11640E+10.**

Negative temperature would occur and calculation aborted when the maximum vapor saturation pressure exceed the given pressure in the warning message. So how was the given pressure calculated? The given pressure was high enough and I doubt that the problem was related to the boundary condition, but I don't know how to correct it.

Could someone help and give some advice?

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