Open the Solver
Open the Solver by double clicking Steady State Thermal project.under the
Set the mesh size
When the solver opens, click on Sizing, and change the Element Size from
0.5 m (Make sure the units are set to meters by selecting Units > Metric (m, kg, N, s, V, A) in the menu bar)
Generate the Mesh
When the sizing has been specified, press Mesh > Generate Mesh to create the mesh.