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How to restrict the calculation at a certain area??

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Old   October 4, 2019, 10:48
Default How to restrict the calculation at a certain area??
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Rasna Sharmin
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Attachment 72567I am modelling a rectangular tank where water comes in and goes out (picture attached). There are two small structures at the base of the tank. My long term goal is to run the water through the tank until I get stable velocity profile and then inject a dense fluid from the base of the canyon (the base in between two small structures at base) and see the flushing out of the dense fluid.

As these simulations take a very long time, I was wondering, is it possible to restrict saving the calculation to only the region around the canyon (the red marked region) when I inject the dense fluid ?? If yes, how can I do that? Please give me some ideas if you have any.

Thanks in advance.

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