Chapter 8: Internal Forced Convection
Chapter 8: Internal Forced Convection
Chapter 8: Internal Forced Convection
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• Surface heat flux can be expressed as∂Tk( ∂T ∂r)( )r=Rqs = hx Ts − Tm = k → hx=∂r r=RTs−Th m• For thermally fully developed region From (Eq. (8-9))(8-10)∂T( )Ts∂r−Tmr=R≠fx( )h ≠ f xx( )Fully developed flowhx=constantFully developed flow