Fiction heat on Ansys Fluent

Jun Lee · September 28, 2020, 04:34

Hi,

In the process of analysing fluid sloshing movement in a sealed tank, does Fluent calculate the friction heat generated by the fluid hitting the tank wall by itself? If not, do I have to enter the elements that I consider through UDF?

Thank you for your helps,

LuckyTran · September 28, 2020, 12:48

You need to turn on viscous heating option in viscous models. It's usually off by default, for some models it is always on. Best way to check is to open up your case and turn it on.

Jun Lee · September 30, 2020, 05:16

Quote:

Originally Posted by LuckyTran

You need to turn on viscous heating option in viscous models. It's usually off by default, for some models it is always on. Best way to check is to open up your case and turn it on.

Thank you for your kind reply.

I turn on 'SST k-w model' and viscous heating too. And do i have to turn on 'wall adhesion too?

Could you teach me what i should to consider for viscous heating modeing? It is caused by fluid movement around the wall.

September 28, 2020, 04:34	Fiction heat on Ansys Fluent	#1
Jun Lee New Member Dongjun Lee Join Date: Sep 2020 Posts: 5 Rep Power: 6	Hi, In the process of analysing fluid sloshing movement in a sealed tank, does Fluent calculate the friction heat generated by the fluid hitting the tank wall by itself? If not, do I have to enter the elements that I consider through UDF? Thank you for your helps,

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September 28, 2020, 12:48		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,754 Rep Power: 66	You need to turn on viscous heating option in viscous models. It's usually off by default, for some models it is always on. Best way to check is to open up your case and turn it on.