evaporative cooling simulation

akky112 · November 6, 2015, 00:51

I want to simulate a evaporative cooling model in fluent. there is air coming from one side of evaporative pad. I want to give mass transfer coefficient to solid pad. Then i want to simulate the air coming out from other side of the wall. what type of model should i use? For moist air which model should I use?

Thanking you in advance.

LuckyTran · November 6, 2015, 10:17

I think rather than having a mass transfer on a "solid plate" what you should try is a porous wall. i.e. a wall that permits mass-flow across the wall.

If only gas phase, you can use the species transport model and specify air & water-vapor. If gas-liquid then you need to use a multipase model (VOF should work).

akky112 · November 7, 2015, 00:12

thanks luckytran,

But how do I give mass transfer coeffcient to porous wall?

onlyi · January 5, 2017, 16:11

could you please send me a yuor file that you analysed evaporative cooler?

November 6, 2015, 00:51	evaporative cooling simulation	#1
akky112 New Member KEER AKSHAY TUSHAR Join Date: Oct 2015 Posts: 3 Rep Power: 10	I want to simulate a evaporative cooling model in fluent. there is air coming from one side of evaporative pad. I want to give mass transfer coefficient to solid pad. Then i want to simulate the air coming out from other side of the wall. what type of model should i use? For moist air which model should I use? Thanking you in advance.

November 6, 2015, 10:17		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,674 Rep Power: 65	I think rather than having a mass transfer on a "solid plate" what you should try is a porous wall. i.e. a wall that permits mass-flow across the wall. If only gas phase, you can use the species transport model and specify air & water-vapor. If gas-liquid then you need to use a multipase model (VOF should work). ahmedcfd2013 and akky112 like this.

January 5, 2017, 16:11	evaporative cooling	#4
onlyi New Member reza Join Date: Jan 2017 Posts: 1 Rep Power: 0	could you please send me a yuor file that you analysed evaporative cooler?

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November 7, 2015, 00:12		#3
akky112 New Member KEER AKSHAY TUSHAR Join Date: Oct 2015 Posts: 3 Rep Power: 10	thanks luckytran, But how do I give mass transfer coeffcient to porous wall?