[John Lee]

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.

[azt]

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.

azt

[John Lee]

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.

[azt]

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.

azt

[John Lee]

Thank you so much. Allan.