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

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.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1987
Accession Number
ADA181449

Entities

People

  • John R. Hawk Iii

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aspect Ratio
  • Buoyancy
  • Channel Flow
  • Computational Fluid Dynamics
  • Computer Programs
  • Data Reduction
  • Engineering
  • Fluid Dynamics
  • Fluid Mechanics
  • Heat Flux
  • Heat Transfer
  • Heat Transfer Coefficients
  • Mechanical Engineering
  • Reynolds Number
  • Steady State
  • Three Dimensional
  • Turbulent Flow

Fields of Study

  • Engineering

Readers

  • Combustion and Flow Dynamics.
  • Fluid Mechanics and Fluid Dynamics.