wall boundary subjected to a random excitation
I am modelling a water tank subjected to an earthquake load. I was wondering if somebody could help me on how I can enter time-history displacement in CFX model.
To clarify the issue, I have defined an expression called "dWall" which represents the displacement of wall boundary condition. I would appreciate if someone could help me how the time-history load can be read as the value of this expression.
Thank you for your time and consideration,
There has been some discussion about this sort of modelling before on the forum - a search of the forum may be useful.
You can do this model either with moving mesh, as you seem to imply; or a simplified model where you just move the gravity vector. Moving the gravity vector is much simpler and quicker, but whether the simplification to a stationary domain is appropriate you will have to determine for your case.
But to answer your question, you can simply define a 1D interpolation function to have the desired displacement versus time function.
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