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Execute command to change boundary condition

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Old   October 17, 2013, 09:42
Default Execute command to change boundary condition
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Aileen Magee
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I am modelling flow of a less dense fluid into tank full of a more dense fluid. I have defined the inlet zone as a velocity inlet and have set the desired velocity magnitude. The problem I am having is trying to change the velocity magnitude to zero after a certain number of time steps. I believe you use the execute command section within calculation activities, however I do not know what command to use. Any help would be appreciated!
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