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Eulerian Wall Film Temperature Film

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Old   January 24, 2022, 18:12
Default Eulerian Wall Film Temperature Film
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Stanlee
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Hi there,

I am simulating the evaporation process of a thin water layer in a duct. The wall and water layer temperature is 333K. The inlet moist air temperature is 298K and 0.5 m/s. It turns out that the air right above the water layer is around 286K (please see the pics below, the first pic is zoomed out one and the second is the zoomed-in one). Is that even possible? In my opinion, the evaporation will cool down the hot wall but not the air above it.

Could someone please help me with it? Thank you!

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Old   January 24, 2022, 18:36
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Stanlee
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I found I mistakenly specified the water film temperature as 300 K. However, I still couldn't under why the temperature of the air layer is that low.
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