A Numerical Simulation of the Flow Field and Heat Transfer in a Rectangular Passage with a Turbulence Promoter

Abstract

A numerical study of the flow field and heat transfer in a turbine blade control cooling passage is described. Attention is focused on a short straight section of the rectangular passage which includes a single turbulator protruding from its floor. The two dimensional, transient, Reynolds averaged Navier Stokes, continuity and energy equations are iterated to a steady state solution using the MacCormick explicit predictor-corrector algorithm. Turbulence closure is achieved through the use of the Baldwin-Lomax form of the Cebeci- Smith algebraic two layer eddy viscosity model. Plots of skin friction, local heat transfer rate, streamlines, velocity profiles and temperature profiles are given. It was found that the widely used Reynolds Analogy greatly underpredicts the heat transfer rate as given by a direct calculation using Fourier's law. Keywords: Heat transfer, Turbulence augmentation.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1988
Accession Number
ADA198579

Entities

People

  • Brian R. Becker
  • Richard B. Rivir

Organizations

  • Wright Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Flow
  • Boundary Layer
  • Computational Fluid Dynamics
  • Energy
  • Energy Transfer
  • Equations
  • Flow Fields
  • Fluid Flow
  • Free Stream
  • Heat Transfer
  • Secondary Flow
  • Skin Friction
  • Turbine Blades
  • Turbines
  • Turbulent Flow
  • Turbulent Mixing
  • Two Dimensional

Fields of Study

  • Physics

Readers

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