Accession Number : ADA181449

Title :   Experimental Investigation of the Effect of Curvature on Heat Transfer in a Curved Rectangular Channel of High Aspect Ratio.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s) : Hawk,John R , III

PDF Url : ADA181449

Report Date : Mar 1987

Pagination or Media Count : 75

Abstract : An experimental investigation was conducted to study convective heat transfer in straight and curved rectangular channels of high aspect ratio that approximate plates of infinite extent. Experiments were performed at steady state in the turbulent flow regime with one wall held at a constant heat flux and the opposite wall essentially adiabatic. The effect of curvature induced secondary flow on heat transfer on the concave and convex walls was observed by comparing Nusselt numbers for four different configurations at several different Reynolds numbers. Significant heat transfer enhancement was observed on the concave wall. Correlations for Nusselt number as a function of Reynolds number were calculated for the cases studied. Keywords: Taylor Gortler Vortices; Duct Flow; Channel Flow; Curved Rectangular Channel; Secondary Flow; Heat Transfer; Dean Number; Theses.

Descriptors :   *HEAT TRANSFER, *CONVECTION(HEAT TRANSFER), PLATES, CONCAVE BODIES, CONVEX BODIES, WALLS, HEAT FLUX, CHANNELS, CURVATURE, RECTANGULAR BODIES, ASPECT RATIO, CHANNEL FLOW, DUCTS, FLOW, OPTIMIZATION, REYNOLDS NUMBER, SECONDARY FLOW, THESES, VORTICES, STEADY STATE, TURBULENT FLOW

Subject Categories : Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE