Turbulent flow and heat exchange in a rotating slot channel

A numerical method based on a two-parameter turbulence model is used to study the heat exchange and flow in a channel formed by two parallel planes perpendicular to the axis of rotation. It is found that with an increasing rotation speed, a secondary flow develops and a core is established in the flow with a linear distribution of velocity along the lines parallel to the rotation axis. Furthermore, with an increase in the rotation parameter gamma, the pulsating motion in the core gradually diminishes. Components of velocity, temperature, and turbulent viscosity are plotted for a Reynolds number of 12,400. The model is shown to fit experimental results for laminarization.