I'm a beginner in doing flow simulations. To get the gist of it, I wanted to do a basic thermal simulation. It includes a box with multiple layers in between.
In the picture the yellow part is the lid and the cyan is the encasing box. The layers are at different positions and fitted tightly within the box's dimensions.
At the bottom of the box there is a plate that acts as a surface source of 260W.
Once a simulation is done at mesh setting 5, the temperature surface plot on the lid isn't what I would expect it to be.
The model itself is very simple and I wouldn't really expect such differences in temperature. Hotter in the middle and then cooler on the outside is what I would have liked to see.
Could anyone tell me any factors that would contribute to this non uniformity?
Thanks in advance