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[求助]
熱源功率設(shè)定，在6000時，正常收斂，當(dāng)為10000時，報(bào)錯
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尊敬的各位版主，高手： 在真空輻射的計(jì)算過程中，熱源功率設(shè)定為6000W/m^3時，計(jì)算結(jié)果最高溫度為1000K，收斂無問題。當(dāng)繼續(xù)增加功率至10000W/m^3時，計(jì)算報(bào)錯，不知哪位高手給予解答下。謝謝。 |
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俺得到的正解： One issue one can easily get with dissusion equations is that, in transient studies particularly, the gradients from the initial conditions are very steep, and the mesh being used is not compatible (too coarse in certain regions). If you are in stationary, what you can ry is to ramp up the power with a solver - contianuation tab - prametrical sweep case and increase the power in 5-10 steps, then each solver case is using the previous results as starting point, and often this allows you to reach your max flux values |
3樓2013-02-04 09:34:39
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