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- - **wall applied to a random excitation**
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wall boundary subjected to a random excitationHello,
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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