Significance of Rarefaction, Streamwise Conduction, and Viscous Dissipation on the Extended Graetz–Nusselt Problem: The Case of Finite-Length Microchannels with Prescribed Wall Heat Flux

Figure 4

Comparison between numerical (blue dots) and analytical results (red continuous lines) for the constant wall heat flux , , , , . (a) versus for ; (b) versus for . The arrows indicate increasing values of .

(a)

(b)