Unfortunate equation error at 2:33. As stated by the presenter, the convective and conductive flux are equal at the wall. Thus, q"w= h(T_w-T=inf) = -k_f dT/dy at the wall. There is a missing equal sign.
They are equal because of the no slip condition. The fluid velocity is zero at the wall, so "convection" happens by pure conduction in the first layer of fluid adjacent to the wall. That's a fundamental concept missing here.
Unfortunate equation error at 2:33. As stated by the presenter, the convective and conductive flux are equal at the wall. Thus, q"w= h(T_w-T=inf) = -k_f dT/dy at the wall. There is a missing equal sign.
Beautiful lecture, Thank you sir
sir this is best lecture on internet - pls name book
Sir ,, please tell me why two equations (Newtown's and Fourier's) are equal at the wall?
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They are equal because of the no slip condition. The fluid velocity is zero at the wall, so "convection" happens by pure conduction in the first layer of fluid adjacent to the wall. That's a fundamental concept missing here.
damn!