EXPERIMENTAL INVESTIGATION FOR FLUID FLOW AND HEAT TRANSFER IN AN ELLIPTICAL DUCT ROTATING ABOUT A PARALLEL AXIS

Abstract

Experimental investigation was carried out for fluid flow and heat transfer in the case of an elliptical duct rotating about a parallel axis using air as the working medium. It was found thai the increase in heat transfer (due to rotation relative to the stationary condition) for an elliptical duct lies between the values for a circular duct and those for a square duct for fully developed laminar and turbulent flows. It was observed that elliptical ducts are more advantageous from the viewpoint of heat transfer augmentation.

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Notes on contributors

M. Mahadevappa

Department of Mechanical Engineering, S. J. College Engineering, Mysore, India.

K. V. C. Rao

present address is Department of Mechanical Engineering, Michigan Technological University, Houghton, Michigan.