Calculation of laminar flow of compressible gas in the presence of heat transfer in two-dimensional curvilinear channels

Numerical solution of the complete system of Navier-Stokes equations is used to investigate laminar (Re ? 1000) subsonic flows of a compressible gas in the presence of heat transfer (cooled walls) in two-dimensional channels containing a bend section (for different curvature parameters). The appearance of closed separation regions of the flow on the channel walls, their deformation as the parameters of the problem are changed, and the loss of pressure are studied. The sections of the channel walls with maximal and minimal heat fluxes are determined, and the connection between these sections and the separation regions is elucidated.