very nicely presented. please edit the description and add timestep like Geometry creating, Meshing, Time setting, solving etc so that we can skip or rewind accordingly.

Thanks for sharing your experience with us. Just a quick question: for transient heat transfer, can we set up water temperature as a function of time, for example at t0 = 0s, T0 = 20C, and it increases linearly till t1 = 100s, T1 = 90C. Thanks

Thank you for this excellent video. BTW, how did you obtain the values for your film coefficients

what i understand is water at 90 degree is flowing in the steel pipe. Heat energy will be transfered from the water to the steel and from steel to aluminiu through conduction. And the aliminium radiate heat to the sorrounding air through convection. How can the air expose the energy by forced concvection in the outer region where the fins are located? since this is the section of the steel pipe with aluminium finned outer cover, i think the energy transer is conduction between water and the two metal and convection bettween the finned aliminium surface and air?