Problem in meshing a plate (thermal problem)

[Sorrow117]

Hello, I’m trying to solve the following problem: a composite plate with circular steel in the lower left corner. The upper and lower surfaces are insulated, on the right the temperature is constant, and on the left exits natural convection. The analysis is steady-state.
I’m using a quadrangular element. The problem occurs when I mesh the plate and the circle, as is visible in the following image; the nodes of the circle aren’t the same as the plate, around the surface of the circle, so when I solve the problem the temperature of the circle doesn’t change.

The image is in the attachment.



I wonder if anyone knows how I can mesh the problem on obtain good results.

 

[Navin A S]

One possible solution is to use a meshing technique that allows for curved elements, such as the Finite Element Method (FEM) or the Boundary Element Method (BEM). These techniques allow for the creation of curved elements which can be used to better capture the shape of the circle. Additionally, you could try using a higher resolution mesh in the area around the circle, as this would allow for more accurate results. Finally, you could consider using a finer mesh for the entire plate, as this would increase the accuracy of the solution.