by using ANSYS FLUENT , I am planning to simulate water evaporation at free surface (WATER at 25 c°) using inlet air at 35 C° degree Celsius and relative humidity 28%. I use Lee Model ;
a value of saturation temperature needs to be provided. What value should I enter for saturation temperature and operating pressure ?
should i need to write a small UDF for the Hertz Knudsen / Scharge formulation.
the temperature is below 100°C
The mass transfer is driven by pressure differences: partial pressure of water vapor in air to its saturation pressure.
Hi,
Be very cautious about the model you choose. Lee's model is used when the temperature is very close to the saturation temperature. I don't think it captures the nature of your problem. Free evaporation at T
about my previous question i found that a user defined function must be provided the mass transfer is done by diffusion precisely Fick's Low
it is like the stefan problem solution
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