Boundary condition ansys fluent

tumitumi Member Posts: 22

What boundary condition and approach I should take?

I have 4 pipes coming from sea (source tank) and these 4 pipes are taking water from sea with help of water pump(p1, p2, p3, p4) and put it to tank, which is in vertical height of say 6 meter from sea. I want know

Effective combined pump flow rate for this combination of piping system & parallel pump

Also flow rate at tank individually by pipes also


  • RobRob UKPosts: 11,770Forum Coordinator

    What information have you got?

  • tumitumi Posts: 105Member

    Hello Rob

    Thanks for commenting, I don't have yet now input for this project.

    But I would like to explore and know, how many ways are there to approach it.

    Like one time may be I know inlet velocity or mass flow rate

    On other situation, I don't know inlet velocity or mass flow rate.

    Just trying to explore different scenerio in internal pipe flow cases.

  • RobRob UKPosts: 11,770Forum Coordinator

    You will know something, that may be the flow rate OUT of the system, no reason not to use a suction (negative velocity) boundary. If the flow is constant density use velocity bc, it's more stable and only takes a minute or so to work out.

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