{"id":303995,"date":"2023-08-30T00:50:43","date_gmt":"2023-08-30T00:50:43","guid":{"rendered":"\/forum\/forums\/topic\/ship-roll-problem-with-negative-cells\/"},"modified":"2023-08-30T11:17:26","modified_gmt":"2023-08-30T11:17:26","slug":"ship-roll-problem-with-negative-cells","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ship-roll-problem-with-negative-cells\/","title":{"rendered":"Ship roll – Problem with Negative cells"},"content":{"rendered":"

Hello, I’am trying to model a ship roll natural deacay. <\/p>\n

But when I’am trying to calculate, it aborts saying there is 1 cell with negative volume. I’ve suppose that its probably because the remeshing can’t follow at the time of one time-step, but I’ve already tried to reduce the time step a lot and the same error appears. Any idea on how to solve?<\/p>\n

Edit: I just made my mesh a little coarsen and adjust the inflation and the calculation seems to improve going trought much more timesteps, but the negative volume cell problems persists and aborted again with 7746 negative volume cells. My time step size was 0.01 and the number of time steps 3000.(transient)<\/p>\n

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Follow the image of my setups and mesh.<\/p>\n

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