Hi everyone, <\/p>\n
I am running a two-way Fluent-Mechanical simulation of a shelf (100x3x200mm; xyz) immersed in a tank (300x500x300mm; xyz) filled with a liquid and a gas using VOF method. The tank is subject to the force of gravity and a harmonic force acting along the x-axis with a frequency f=2Hz. Since I wanted the liquid to be initialized with an angle of 10° I have created a region register with cylinder shape with the coordinates shown below. The other settings are shown below as well.
When I launch the analysis it stops at a certain time step for “Negative cell volume detected”. I have tried to reduce the time-step but it stops even earlier in the simulation. Furthermore, looking at force report (from Fluent) and displacements report (from Mechanical) I have noticed that in the time step that leads to the error, the force and the displacements increase inexplicably and I am not understanding the reason if everything is going well until that time step. To visualize the cells with negative volume I have created a volume register and a iso-surface.<\/p>\n
Can anyone point me a solution or a way to understand what is failing during the analysis?
Feel free to ask any other information that you may need. Thanks in advance. <\/p>\n
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