![]() ![]() Co-simulation displacement residual always stays at zero and then simulation crashes with non positive cell volume. So I reduced the time step to 1e-6 seconds which still gave me the same error.Ĥ. Initially I was using 0.005s of time step but then I thought it might give too much pressure gradient. If I change the material properties in Abaqus from young's modulus of heart to 10x or 20x or 100x times youngs modulus of heart then it gives me same error but after 10 - 11 time steps.ģ. When I take a look at geometry it is deformed way too much and it literally expand beyond physcially possible.Ģ. After setting up the simulation in StarCCM+ and specifying material properties in Abaqus my simulation only runs for two time steps in StarCCM+ and then it gives me non positive mesh error. I am following the Plate FSI tutorial that is in the StarCCM+.ġ. These are the list of errors I am facing. I am setting up a Fluid Structure Interaction(FSI) problem using StarCCM+ (Fluid) and Abaqus (Strutural) software. I am working to simulate the dynamic response of an aorta for time varying mass flow rate. Hello Everyone, Thank you for taking your time to go through my post for extending your help!! ![]() StarCCM+ and Abaqus FSI simulation error.
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