September 16, 2022 at 1:39 amsahua1Subscriber
I am trying to model a simple single cell on a cooling plate with a cooling channel. However, despite a cell heat generation rate of 47,006.3 W/m^3, the system constantly goes to 20°C no matter the temperature at the inlet. Kindly see pictures below of the pathlines of coolant temperature and a contour of the cell temperature when inlet temperature is 30°C.
I would really appreciate any tips on how to fix this.
September 16, 2022 at 10:52 amRobAnsys Employee
I can't see the images.
What are the wall boundary conditions? Did you check the model scale?
September 26, 2022 at 2:05 amsahua1Subscriber
Hello, sorry for the late response. I didn't realise the pictures didn't upload. Please find them attached now. For the boundary conditions;
Inlet velocity = 0.18 m/s, temperature = 30°C
Cell heat generation rate = 47006.03 W/m^3
I didn't change the thermal conditions of the other boundaries.
September 20, 2022 at 7:06 amDrAmineAnsys Employee
No pictures till now. What do you mean with single cell: do you have only one "finite" cell in your case?
September 26, 2022 at 2:06 amsahua1Subscriber
Hello, sorry for the late response. I didn't realise the pictures didn't upload. I only have a single "finite" cell on one cooling plate with an S-shaped coolant channel running through it.
September 26, 2022 at 6:44 amDrAmineAnsys Employee
I do not understand your case. Can you list the zones and the models you are using? If you go to flux report and do heat flux reporting: can you add the screenshot of the info printed into the Fluent console?
September 30, 2022 at 2:15 amsahua1Subscriber
Kindly find the fluxes attached. This was with inlet temperature set to 20°C and a flow rate of 0.18 m/s and the cell heat generation rate set to 47006.03 W/m^3. Why isn't the cell generating heat? Shouldn't Ansys be able to show the temperature change in steady state? Or does it have to be in transient state?
September 30, 2022 at 8:15 amDrAmineAnsys Employee
Which Cell: Can you please list all cell zones you have? Can do the flux report for all BC and not only the inlet/outlet?
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