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进行伴随优化,求解一个标量场总是发散,入口处第一层网格上异常偏大
边界条件如下:
inlet { type fixedValue; value uniform 0; } outlet { type adjointOutletTemperature; value uniform 0; } upperWall { type fixedValue; value uniform 0; }
求问,可能是什么原因?
fvScalarMatrix TtEqn ( +r* fvm::div(-phi,Tt) +Tt* fvc::div(-phi,r) +Tt* r*fvc::div(-U) +fvm::laplacian(-ka,Tt) );// TtEqn.relax(); TtEqn.solve();
里面r,ka都为已知标量,U为速度
类似这种求解不正确的问题很难判断 :confused: