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Joule heating model having spurious and negative temperatures
Posted 2021年7月1日 GMT+8 23:06 1 Reply
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This is a result of Joule heating model, where two electrods are heating the medium in between. I got spurious and negative temperatures. Below is a zoomed in view of the temperature. Any idea why that happens?
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I don't really know, but considering the hazy block-like shading that I can see in the blue parts of the zoomed view, it sure looks to me like you may not have nearly a fine enough mesh in the volume(s) right around the sources of heat. You might want to modify that and try again. Your mesh need to be fine enough to capture the details of the gradient in temperature.
Added: Consider posting your .mph file to the forum.
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