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Question Regarding to Export and Import The Velocity Profile

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Old   September 18, 2014, 21:00
Smile Question Regarding to Export and Import The Velocity Profile
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Junhong Li
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Dear all,

I'm a beginner to the Star CCM+, I have a question regarding to export and import the velocity profile. I hope any of you could provide some advice. Thanks in advance. Here is a detail description of my problem:

I want to simulate the flow passing an obstruction using the DES method. First, I construct a rectangular flume model to generate a fully developed turbulence, and then wanna to use the outlet conditions of this first model as the inlet boundary conditions of my second model, which contains a bridge pier in the flume. But I couldn't figure out how to export the velocity profile from the first simulation result, and how to import the velocity profile into my second model properly.

Any help is greatly appreciated.
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Old   September 19, 2014, 06:05
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allan thomson
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Hi

Go to tools -> tables -> create new internal table, choose part (probably outlet) and your variables, extract the data. Then export the table to a file.

Open your other model, tools -> table -> read from a file.

For your boundary condition choose table as your method and in value choose your selected variable.

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Old   September 19, 2014, 09:34
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Hi allan,

Thanks for your answer. That's exactly what I'm looking for. Also, beside selecting the table method to set the boundary conditions in my inlet surface node under the Region, should I also add the boundary condition in the 'intial conditions' node under the continua-physics? Thanks again.
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Old   September 19, 2014, 09:57
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allan thomson
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Hi

Initial conditions are the are for the complete domain, not just boundary conditions.

To do this you would need a table for the whole flow field.

So the answer is no.

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Old   September 19, 2014, 10:01
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Thank you so much. Allan.
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