Acusolve adiabatic bc

abchougule · June 19, 2019, 12:57

How to give adiabatic wall BC to fluid solid interface in AcuSolve?

Yves-Marie · June 20, 2019, 04:21

Hi,

Have you tried contacting Altair's Tech Support or posting on a solver related forum?

abchougule · June 20, 2019, 05:54

yes, I tried contacting Altair's Tech support but didn't get any positive response yet.

Whitster · June 20, 2019, 08:05

Hi abchougule,

First, what are you trying to model by setting an adiabatic condition at a fluid solid interface? If the solid is included in your model wouldn't CHT be appropriate?

If you truly want an adiabatic condition on the fluid boundary you can either model only the fluid or you can set the solid medium to none.

abchougule · June 22, 2019, 07:13

THANKS.
It's true that CHT is appropriate in the mention condition. But for the case on which I am working on, I need the solids( to be included in the analysis) to behave as an insulator to heat transfer.

Whitster · June 23, 2019, 10:12

If you need to include the geometry but model it as a perfect insulator then is there additional geometry outside the wall? If so, it might be best to model the solid as a void and put the adiabatic condition on the fluid boundary.

If you need to model the solid with material for other reasons you could split the nodes at the interface of the fluid and solid. You might also think about using thermal shells to model insulation.

June 19, 2019, 12:57	Acusolve adiabatic bc	#1
abchougule New Member Abhijeet Pawar Join Date: Sep 2015 Location: Pune Posts: 11 Rep Power: 10	How to give adiabatic wall BC to fluid solid interface in AcuSolve?

June 23, 2019, 10:12		#6
Whitster New Member Join Date: Jun 2019 Posts: 3 Rep Power: 6	If you need to include the geometry but model it as a perfect insulator then is there additional geometry outside the wall? If so, it might be best to model the solid as a void and put the adiabatic condition on the fluid boundary. If you need to model the solid with material for other reasons you could split the nodes at the interface of the fluid and solid. You might also think about using thermal shells to model insulation. abchougule likes this.

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June 20, 2019, 04:21		#2
Yves-Marie New Member Yves-Marie Lefebvre Join Date: May 2017 Posts: 1 Rep Power: 0	Hi, Have you tried contacting Altair's Tech Support or posting on a solver related forum?

June 20, 2019, 05:54		#3
abchougule New Member Abhijeet Pawar Join Date: Sep 2015 Location: Pune Posts: 11 Rep Power: 10	yes, I tried contacting Altair's Tech support but didn't get any positive response yet.

June 20, 2019, 08:05		#4
Whitster New Member Join Date: Jun 2019 Posts: 3 Rep Power: 6	Hi abchougule, First, what are you trying to model by setting an adiabatic condition at a fluid solid interface? If the solid is included in your model wouldn't CHT be appropriate? If you truly want an adiabatic condition on the fluid boundary you can either model only the fluid or you can set the solid medium to none.

June 22, 2019, 07:13		#5
abchougule New Member Abhijeet Pawar Join Date: Sep 2015 Location: Pune Posts: 11 Rep Power: 10	THANKS. It's true that CHT is appropriate in the mention condition. But for the case on which I am working on, I need the solids( to be included in the analysis) to behave as an insulator to heat transfer.