I am using preCICE 2.5 to couple my waves2foam and structural solver on Ubuntu22.04.I have verified that the modification of wave model is successful. It has worked for a long time, but under the condition of 0.01 time step, it took 2403s ClockTime to calculate 0.12s data and it reports an error ad…

How is the Courant number and the adaptive time step size calculation going? I can imagine that OpenFOAM is trying to do an unreasonably small timestep, which preCICE then interprets as zero.

Thank you for your reply, This is my controlDict file. I have tried to set writeControl to timeStep It does resolve this error. But I don’t know whether the time step is getting smaller and smaller because of the dynamicMesh. controlDict.txt (1.5 KB)

I didn’t delve into the causes of the above problems. I continued to simulate after modifying the controDict file, and it was successfully completed. However, the result of simulated distortion appears. I check the log file and find that the residual is not very large, perhaps not computational dive…

I can imagine that what you experience here is related to accumulating errors over time, since probably OpenFOAM is doing extremely small time steps. In controlDict, these are the relevant parts: deltaT 0.01; adjustTimeStep yes; maxCo 0.25; maxAlphaCo 0.5; maxDeltaT …

Problems encountered in coupled waves2foam

Using preCICE

wut_wang November 16, 2022, 3:52am 5

(Removed as duplicate of Problems of PreCICE coupling waves2foam and CalculiX)

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Problems encountered in coupled waves2foam

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