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Laminar or Turbulent Flow

Posted 12 sept. 2019, 23:40 UTC−4 Fluid & Heat, Computational Fluid Dynamics (CFD), Results & Visualization 1 Reply

Alex Chautner
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Hi all,

I am modelling flow through an inlet of a HX as I want to analyse the pressure drop. I am quite sure that the flow will be laminar due to the low mass flow rate of 200 kg/hr, however the solution does not solve when I use the laminar flow module. It only solves when I use the turbulent flow module.

When I use the velocity results from the turbulent flow module, the calculated Re is like 1600, so well within the laminar regime (to calculate Re I used Dh = Vol/wetted surf area as the 3D inlet is very complex). I don't understand why it wont solve for laminar flow module?

Thanks,

Alex

1 Reply Last Post 12 sept. 2019, 23:41 UTC−4
Alex Chautner
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Posted: 5 years ago 12 sept. 2019, 23:41 UTC−4

P.S - it solve with Turbulent SST, but not with algebraic y+

P.S - it solve with Turbulent SST, but not with algebraic y+

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