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Laminar to Turbulent flow transition

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Old   September 24, 2020, 02:07
Default Laminar to Turbulent flow transition
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ahmad
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Hello Everyone,

I want to simulate a fluid flowing through a pipe. IIt looks like a simple case, however, I am unable to simulate the transition .
I want to simulate at different velocities (which i have calculcated through reynolds number earlier and want to see the simulation of same in Fluent) and I have selected k-kl-w(3 eqs) and transition kw(4 eqs) models. I have meshed the pipe and the domain fine enough, (as i have previous experience of fluent). However, even at high velocities the flow remain laminar.

Anyhelp, would be highly appreciated.

Thank you.
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laminar flow in pipe, turbulent flow in tube

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