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March 15, 2013, 11:04 |
Pressure jump and vanishing solver
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#1 |
New Member
Silvan Brändli
Join Date: Aug 2009
Posts: 27
Rep Power: 16 |
Dear all,
we are simulating fluid-structure interaction (FSI) using OpenFOAM (a modified interDyMFoam solver) and an external structural solver, coupling them via MPI. After a certain simulation time one of the OF solvers (either for cellDisplacement or U) "looses" one component. Usually (in quasi 2D) we get something like Code:
DICPCG: Solving for cellDisplacementy, Initial residual = 5.561218854736067e-07, Final residual = 5.561218854736067e-07, No Iterations 0 DICPCG: Solving for cellDisplacementz, Initial residual = 1.058528227755323e-06, Final residual = 3.090254563914258e-07, No Iterations 1 Code:
DILUPBiCG: Solving for Uy, Initial residual = 0.006568920370747625, Final residual = 2.648992650684406e-10, No Iterations 2 DILUPBiCG: Solving for Uz, Initial residual = 0.002921793460135126, Final residual = 2.591064855961802e-11, No Iterations 2 Has anybody ever experienced something like this? Any hint or rough guess? Best regards Silvan |
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