Numerical Analysis of Water Forced Convection in Channels with Differently Shaped Transverse Ribs

Figure 6

Friction factor profiles, referred to the smooth channel results, as a function of 𝑝/𝑒 at Re=20000, 30000, and 60000, for 𝑒/𝑑=0.05: (a) square-ribs, (b) rectangular ribs with 𝑤/𝑒=0.5 and 2.0, (c) triangular ribs with 𝑤/𝑒=1.0 and 2.0, and (d) isosceles and rectangular trapezoidal ribs with 𝑤/𝑒=2.0.

(a)

(b)

(c)

(d)