Computation of Flow and Heat Transfer in Flow Around a 180 deg Bend.

Abstract

During 1982-83 work progressed on four separate fronts corresponding to both experimental and computational aspects of turbulent flow in 180 bends for both square and round tubes. The design and construction of the apparatus was described in some detail in last year's Annual Report. The radius of the bend was 3.35 times the duct hydraulic diameter (DH), the width of the duct walls being 88.9 mm. Up to 70 hydraulic diameters of flow development were available prior to the bend but the main emphasis of the experiments was directed at the case of 31 DH which corresponded with the conditions at which the UC Berkeley flow field data had been taken. Downstream of the bend 40 hydraulic diameters of instrumented straight ducting allowed the effects of decaying secondary flow to be studied.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1984
Accession Number
ADA148065

Entities

People

  • B. E. Launder
  • H. Iacovides
  • J. A. C. Humphrey
  • J. W. Baughn
  • Wayne Johnson

Organizations

  • University of Manchester

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Boundary Layer
  • Computational Fluid Dynamics
  • Computational Science
  • Computer Simulations
  • Fluid Dynamics
  • Fluid Flow
  • Geometry
  • Heat Transfer
  • Hydrodynamics
  • Measurement
  • Mechanical Properties
  • Numerical Analysis
  • Secondary Flow
  • Stratified Fluids
  • Three Dimensional
  • Turbulent Mixing
  • Two Dimensional

Fields of Study

  • Environmental science

Readers

  • Combustion and Flow Dynamics.
  • Technical Research and Report Writing.