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-   -   Considering Humidity in the Air (http://www.cfd-online.com/Forums/fluent/107201-considering-humidity-air.html)

Ariya September 20, 2012 01:26

Considering Humidity in the Air
 
Hi Guys,

I am modelling a building block ( a room ) with Air inside for Natural Convection. I wonder If anyone knows how can I consider the impcat of Air humidity in the model?


Cheers,

RodriguezFatz September 20, 2012 01:39

Hi,

You need to find a database, that contains all relevant physical properties of air as a function of humidity. Then, you can put these values into fluent (Materials->Fluid->Air->....).
You will need viskosity, specific heat capacity, density, thermal conductivity and whatever your model needs.

syavash September 20, 2012 20:05

I think you should use Species to model the humidity in the air. Knowing mass fraction of water-vapor at room and solving set of N-S equations plus an additional equation for water-vapor.
Goodluck

savate moh May 29, 2013 16:17

Quote:

Originally Posted by syavash (Post 382886)
I think you should use Species to model the humidity in the air. Knowing mass fraction of water-vapor at room and solving set of N-S equations plus an additional equation for water-vapor.
Goodluck

hi ariya, i'd like to know what have you done with your work? did you find how to simulate it?? i'm simulating thins kind ,i was wondering if you could show me please thx


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