problem in simulating porous drying process
 

i am using fluent to simulate a air drying process of a piece of cotton.
i have tried to simulate the whole setup with a fan a some volume of area.
but my computer is too slow to calculate that huge amount of meshes.
so i decided to remove the large volume of air and the inlet, with only a thin layer of air, setting the air to be a constant high temperature, simulating the constant hot air flow around the cotton.

the water can be vaporized and come out to the thin layer of air, but now the problem is, the vapor accumulate in the layer of air. (i have tried pressure-oultet for the surface of the layer of air, but the rate of vaporizing water still slow down at the early state, so i think it fails)
in real case, the vapor should be carried away almost immediately by the air flow.

can it possible to set the condition as the vapor come out of the cotton, it disappear? or how can i set the vapor to get out of the air much faster?


thank you for paying attention to my problem.
and sorry for my poor english

do anyone know please tell me please.

thank you so much!!!

Hi benson 621,

A couple of months ago I had to deal with an evaporation problem. But it was ink printed on web. Could you send me your fluent file so that I can have a look at your problem?

my email: davidmanuel1201@hotmail.com

Do not give up. Fluent is like women ;)

thank you for your response.
i am new in ansys fluent.
which part of the file you need, i think it is not possible to send you the whole project file, right?
should i save as some specific format, so that it is small but contain enough data for you to go through my case ?

Just send me the files you need to run the model on fluent.

:)

i have already sent to your email (davidmanuel1201@hotmail.com),
can u receive it? coz my email seems to have some problem, i am not sure if the email was sent out or not actually

I got it. I will check it soon.. keep in touch :)

can u figure out how u make it ?