Why does evaluateHeatRate in PDE Solver give different answers depending on mesh size?
5 次查看(过去 30 天)
显示 更早的评论
I have a simple half-space 2D thermal model with a top surface at 0, a specified heat flux at the bottom, insulated sides, and a hot rectangular body on the left size. I am interested in the total thermal energy lost from the body in a given time, and therefor sum the results of evaluateHeatRate for the top, right, and bottom edges of the hot rectangle. If I use the default mesh generation I get one (reasonable) number, but if I make the mesh significantly finer by setting Hmax, the calculated heat lost goes up by a factor of two. It keeps rising as I made the mesh finer and finer. Any suggestions as to why this is happening appreciated.
回答(0 个)
另请参阅
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!