Condensation of humid air on a cold surface (VOF - Lee, species transport)

Tarantino · November 17, 2021, 04:32

Hello!
I want to simulate humid air condensation on a cold surface. The geometry includes two channels with a joined blade in between.
I simulated humid air using “species transport” and condensation using VOF, Lee model. A UDF imposes the saturation Temperature.
The problem I face is that I got very small (negligible) condensation on the blade although we expect a clear formation of water on the blade.
I tried a variety of settings, however, none works!!
Any hint what might be the problem?

Thanks.

suoCFD · October 21, 2024, 07:38

Did you modify a solver or use one of tutorial cases?

November 17, 2021, 04:32	Condensation of humid air on a cold surface (VOF - Lee, species transport)	#1
Tarantino Member Tarantino Join Date: Feb 2013 Posts: 46 Rep Power: 13	Hello! I want to simulate humid air condensation on a cold surface. The geometry includes two channels with a joined blade in between. I simulated humid air using “species transport” and condensation using VOF, Lee model. A UDF imposes the saturation Temperature. The problem I face is that I got very small (negligible) condensation on the blade although we expect a clear formation of water on the blade. I tried a variety of settings, however, none works!! Any hint what might be the problem? Thanks.

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October 21, 2024, 07:38		#2
suoCFD New Member Suhan Umur Okuducu Join Date: Oct 2024 Posts: 8 Rep Power: 2	Did you modify a solver or use one of tutorial cases?