Internal Flow(Cont'd For constant heat flux: T(x) conv.x +T .x n c X fd, thermal For constant wall temperature if ts Ti ift> t T Sections 8.4 and 8.5 contain correlation equations for Nusselt number cony A、h△T LM Heat Transfer Su Yongkang School of Mechanical EngineeringHeat Transfer Su Yongkang School of Mechanical Engineering # 8 Internal Flow (Cont’d) • For constant heat flux: • For constant wall temperature • Sections 8.4 and 8.5 contain correlation equations for Nusselt number T (x) s Tm (x) fd thermal x , T x Tm Ts T x Tm Ts T x Ts Ti if  Ts Ti if  qconv = As h TLM in p conv m x T m c q T x ,  +  = 