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How to set unsteady turbulent inlet velocity using the result of another simulation? |
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#1 |
New Member
Join Date: Dec 2016
Posts: 4
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Hey everyone,
I want to simulate a turbulent jet flow with different model in Fluent. And the simulation should have an unsteady turbulent inlet velocity profile at the source which I plan to achieve by performing a separate periodic pipe flow simulation. Specifically, the inflow at the jet source will be prescribed as an unsteady boundary condition derived from a separate simulation of turbulent pipe flow with the same Reynolds number. Then the velocity field will be recorded across a single cross-section of a periodic pipe flow simulation at each time step, after the simulation reached a statistically steady state. This recording will be then interpolated onto the boundary cell face at the fountain source in the fountain simulation at each time step. I am wondering if this can be achieved in Fluent and how? Thank you so much. |
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#2 |
Senior Member
Lucky
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 5,728
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Check out how to do a transient profile.
That is, write a "profile" from the source simulation and then read that profile into your turbulent jet simulation. |
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#3 |
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Join Date: Dec 2016
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Tags |
fluent, turbulent jet, udf, unsteady inlet velocity |
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