Learning Forum

[Mohammed Alhulaimi]

Hello I am working on a problem for my FEA class where I have to solve for temperature distribution and heat loss between a wall and soil. I have solved for temperature distribution as seen in the picture I am sharing but I am wondering now if there is a way to solve for heat loss in ANSYS?

Thank you

[peteroznewman]

Please reply with details on each boundary condition applied to this model. An overview is shown when you click on the Steady State Thermal item in the Outline.

[Mohammed Alhulaimi]

This file is saved on a school computer and the school is closed today so I don't have access to it. The model looks like the picture I've attached.

To the left surface I applied:

Ambient temperature,  T=68 F
Thermal conductivity, k=1.0 BTU/hr.ft.F

To the right surface I applied:
Ambient termperature, T=15 F
Thermal conductivity, k=0.85 BTU/hr.ft.F

The questions also mentions the heat transfer coeficient for each surface.
Left surface, U=1.46 BTU/hr.ft^2.F
Right surface, U=6.0 BTU/hr.ft^2.F

Let me know if this works or if I need the file. I may be able to get it from someone.

[peteroznewman]

There are two different boundary conditions: 1) a Temperature boundary condition which enforces a specific temperature on a surface and 2) a Convection boundry condition, which has an Ambient Temperature input and a Film Coefficient.  When you say Ambient temperature above, are you referring to boundary condition of type 1 or type 2 because it's not clear the way you wrote your reply.

Also, are you doing a 2D problem or a 3D problem. That is also not clear because a surface in 2D is the edge of the rectangle, while in 3D it is the face of the rectangle.

[Mohammed Alhulaimi]

I used type 2, a convection boundary condition. And the model is set 2D, I applied the convection on the edges.