September 1, 2017 at 1:22 pmniklas37Subscriber
how can I create a seismic analysis of a water filled tank using Ansys? Which type of analysis could use for this problem and how can I couple the analysis the right way?
September 8, 2017 at 2:01 ampglAnsys Employee
This depends on how important the water sloshing is to your application: If the tank is completely full, you could assume the water is a solid. That might be an oversimplification. You could also assume that the tank is a rigid body. For best results you'll need to perform a two way fluid-structural interaction simulation. That will capture the movement of the fluid and the deformation of the tank.There's quite a few published tutorials example on YouTube, for example, here's an AIM FSI tutorial to get you started:
Also, here's two videos of a seismic simulation of fluid filled tanks:
October 26, 2017 at 7:48 pmRaef.KobeissiSubscriber
Hello niklas37, I've done a similar simulation before, this is the tutorial for it, have a look and please let me know if it answers your question!
October 26, 2017 at 11:06 pmpeteroznewmanSubscriber
October 28, 2017 at 12:20 ampeteroznewmanSubscriber
pgl mentioned in his post above that water can be modeled as a solid if the tank is full.
I used that method in a model built to study the stress in a plastic tube filled with water when it hits the floor from a 15 inch (38 cm) drop height. Though many people think of Explicit Dynamics when a drop test simulation is needed, I didn't have a license at that time, but I had a Transient Dynamics license so I used the implicit solver to run the model and the results were excellent.
Here are the water properties I used.
See this discussion for more information on this model.
February 8, 2021 at 11:52 pmkashfia.mahinSubscribernCan you share the file here?.
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