Chemical Engineering - Heat Transfer - Discussion
Discussion Forum : Heat Transfer - Section 9 (Q.No. 36)
36.
Critical value of the __________ number governs the transition from laminar to turbulent flow in free convection heat transfer.
Discussion:
3 comments Page 1 of 1.
Andy Mukil said:
3 years ago
Option D is correctly given as Rayleigh's number (=Gr.Pr) signifies the transition.
Kochhar said:
9 years ago
It should be Grashof number, the critical value being 10^9.
Radhe said:
4 years ago
It is Rayleigh Number (Ra)= Gr. Pr >10^9 for turbulent.
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