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"Temperature limited to..." at mass transfer location

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Old   April 11, 2023, 18:04
Default "Temperature limited to..." at mass transfer location
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Andrew
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I am simulating water evaporation to still ambient air using species mass transfer. It works fine without the energy equation, but I get strange temperatures when energy is enabled (I need energy on).

The whole domain is initialized at 300 K, pressure inlets/outlets have 300 K specified, and walls have 0 heat flux. Yet, as evaporation occurs, the temperatures at the location of mass transfer start to drop. It starts small, but usually builds to divergence, where I get the "Temperature limited to..." error.

I could understand some evaporative cooling taking place, but I don't think that's what this is (it occurs far too fast, and shows reduced temperatures in the vapor, rather than the liquid).


Images below - Thanks in advance for any suggestions.

2023-04-11 18_02_55-B_Fluid Flow (Fluent) Parallel Fluent@DESKTOP-TTQLM5V [2d, dp, pbns, mixtur.jpg

2023-04-11 18_03_12-B_Fluid Flow (Fluent) Parallel Fluent@DESKTOP-TTQLM5V [2d, dp, pbns, mixtur.jpg

2023-04-11 18_03_22-B_Fluid Flow (Fluent) Parallel Fluent@DESKTOP-TTQLM5V [2d, dp, pbns, mixtur.jpg
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Old   August 21, 2023, 09:36
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Maharghya Dyuti Das
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Can you please share your case files, I am new to the topic so it would be very helpful.
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energy, evaporation, multiphase, species

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