Turbulent Forced Convection and Heat Transfer Characteristic in a Circular Tube with Modified-Twisted Tapes

Figure 8

Local Nusselt number contours on the tube wall for (a) TR = 1, (b) TR = 1.5, (c) TR = 2, and (d) TR = 4 of the modified-twisted tape in the tube at Re = 10,000 and LR = 0.88.

(a)

(b)

(c)

(d)