nusselt

The local Nusselt number Nu at a certain position x, measured from the beginning of the heat transfer, can be determined by means of the local profile factor β: Nu = 3√49. gacor 69 slot 371 + (1 077 ⋅ 3√β − 0 7)3 β = Re ⋅ Pr ⋅ d x Note that the profile factors in the formulas above are close to zero for very long pipes