Research Article

Influences of Flow Attack Angles and Flow Directions on Heat Transfer Rate, Pressure Loss, and Thermal Performance in Heat Exchanger Tube with V-Wavy Surface

Figure 15

λ2 isosurface of the heat exchanger tube inserted with the V-wavy surface at α = 30° and Re = 6000 for (a) V-Downstream and (b) V-Upstream.
(a)
(b)