Effect of Flow Attack Angle of V-Ribs Vortex Generators in a Square Duct on Flow Structure, Heat Transfer, and Performance Improvement

Figure 8

Contour plot Nu_𝑥 for (a) V-Downstream and (b) V-Upstream of 20° V-rib at Re=800, BR=0.20, and PR=1.

(a)

(b)