topic Re: Thermal Analysis not giving expected results in Fusion Support Forum

Thermal Analysis not giving expected results

Anonymous — Wed, 19 May 2021 15:32:48 GMT

I have created a heater plate with 3 zoned rod heaters. The end zones are 200W each (1200W total) and the center zone is 150W (900W total). There are 6 heater rods with 3 zones each (200W/150W/200W)

When I run the analysis I fine one end of the plate is much cooler than the other. However both ends of the cylinder faces inside the part have the same thermal loads applied (1200W). The middle is slightly less. I would expect the heat to be symmetric, a bit hotter on the ends and bleeding into the center to create a somewhat uniform heat distribution.

If I remove the split faces to make these all one long heating rod I get the results expected (hot in center and cooling on the ends).

Any idea what might be happening?

Re: Thermal Analysis not giving expected results

Anonymous — Wed, 19 May 2021 15:34:04 GMT

Screencast link did not take. Here it is: https://autode.sk/3bGEig2

Re: Thermal Analysis not giving expected results

Anonymous — Tue, 25 May 2021 12:04:46 GMT

Bump... no one?

Re: Thermal Analysis not giving expected results

andras.borsos — Tue, 25 May 2021 14:36:49 GMT

Hi Sean,

Did you make sure that convection and radiation are applied symmetrically?
In case you already did so, can you share the model?

Re: Thermal Analysis not giving expected results

Anonymous — Tue, 25 May 2021 15:04:34 GMT

I selected all faces when applying these conditions. I can share sure...