Quantify the advantage of turbulent flow over laminar flow in cold plate for transient analysis

[dannyx]

Hi,

I'm wondering if there is a way to quantify the advantage of turbulent flow over laminar flow for a transient analysis?

Thanks,
Danny

 

[EngrPaper]

If you are dealing with transient convection, I would imagine that a numerical solution is necessary. If you have access to a CFD package, it would be relatively simple to build a few models and run them with varying Reynolds numbers. You could try doing the numerics by "hand" (self programmed) but that would get quite complicated. That would involv building a node network, setting up the Navier-Stokes equations at each node, boundary and initial conditions, and using which ever numerical method you believe would be accurate to propagate through your model.

 

[IRstuff]

https://web2.clarkson.edu/projects/...es/Heat Transfer in Flow Through Conduits.pdf

Nusselt number can be expressed as a function Reynolds number, and Nusselt number is directly proportional to convective heat transfer coefficient.

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