Selfsustained flow oscillations and heat transfer in radial flow through corotating parallel disks
Abstract
An experimental study was conducted to determine the fluid flow and heat transfer characteristics in a passage formed by two parallel rotating disks. The local heat transfer coefficients along the disk radius were measured in detail and the flow patterns between the two rotating disks were visualized by using paraffin mist and a laserlight sheet. It was disclosed that: (1) the selfsustained laminar flow separation which is characteristic of the stationary disks still exists even when the disks are set in motion, giving significant influence to the heat transfer; (2) for small source flow Reynolds number, Re, and large rotational Reynolds number, Re(omega), rotating stall dominates the heat transfer; and (3) heat transfer for steady laminar flow occurs only when Re is less than 1200 and Re(omega) is less than 20.
 Publication:

Experimental Thermal Fluid Science
 Pub Date:
 March 1990
 Bibcode:
 1990ExTFS...3..242M
 Keywords:

 Forced Convection;
 Heat Transfer;
 Radial Flow;
 Rotating Disks;
 Separated Flow;
 Unsteady Flow;
 Flow Distribution;
 Flow Visualization;
 Fluid Flow;
 Heat Transfer Coefficients;
 Laminar Flow;
 Reynolds Number;
 Fluid Mechanics and Heat Transfer