Influence of three-dimensional effects on fluid dynamics and heat transfer in the subsonic flow of a viscous compressible gas on the initial section of a rectangular channel

The complete steady-state system of Navier-Stokes equations is used to conduct a numerical parametric study of the influence of three-dimensional effects on fluid dynamics and heat transfer on the initial section of a heated rectangular channel with a change in the Mach number $\rm M_0$ from $0$ to $0.3$ and a change in the Reynolds number $\rm Re_0$ from $50$ to $150$ at the inlet of the channel.