March 24, 2020 at 2:26 pm
March 24, 2020 at 6:13 pmWenlongAnsys Employee
Just wondering why is contact not defined between fluid and container?
March 25, 2020 at 2:22 amharsfSubscriber
Thanks for replying,
This is what i have done. x_face , y_face , z_face are the faces perpendicular to the x,y,z directions which relates to both fluid (liquid element) and solid (tank element) interface surfaces. This command snippet worked for a small scale model with a acceleration.In small scale model it didn't leak and expected type of sloshing can be seen. But when i applied this to the real model with real dimensions and also with the Earthquake related real acceleration vs time data, it leaked as the above images. Can you help please?
March 26, 2020 at 3:04 pmHuiLiuAnsys Employee
Fluid80 element is legacy type contained fluid element, but for sloshing it should have a free surface, ie. not fully contained. You can use the current technology element fluid221 or 220 instead. It is recommended to have share topology between your fluid body and the tank, ie. shared nodes between fluid and structure. Or at least define MPC contact between them if share topology creates difficulties for meshing (which shouldn't be an issue for your model as it is not a complex shape). Fluid element (uncoupled) doesn't have displacement DOFs so I don't think the coupling command is going to have any effect on it.
What kind of results are you interested in seeing?
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