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Reduce the instability in coupled PDEs

Posted Oct 20, 2015, 7:45 p.m. EDT 0 Replies

Jiangzhi Chen
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I am simulating a model where I need to solve three PDEs of h(t), T(h,t) and d(h,T,t). The model runs smoothly but I get a problem with the initial instability solving T and d. I tried using segregated solver, but the instability still exists. Although the instability disappears quickly with time, it still haunts me because if I further let h couple with d, the result becomes very unstable. The files are attached. Is there some stabilization method I can use in PDE interface?

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0 Replies Last Post Oct 20, 2015, 7:45 p.m. EDT
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