HTC in Natural convection

Hi Sir,

In the External natural convection video, Natural convection course the instructor is saying that "In turbulent flow, the HTC is independent to body characteristic length" (PFA)

I understood that n is 1/3 for turbulent flow and power of L is 3 & they will cancel each other and will get only L so, my question is HTC will be linearly proportional to L right? How HTC can be independent of body characteristic length?

Can someone please clear my doubt? TIA

Thank you,

Abubakar khan



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