CFD Analysis for Heat Transfer Enhancement inside a Circular Tube with Half-Length Upstream and Half-Length Downstream Twisted Tape

Figure 5

Variation of Nussle number (Nu) versus Re for different inserts: (a) for 𝜆=0.14, (b) for 𝜆=0.27 and, (c) for 𝜆=0.38.

(a)

(b)

(c)