Numerical Analysis of Flow Around Rectangular Cylinders with Various Side Ratios

Abstract

Three-dimensional numerical analysis of the flow around rectangular cylinders with various side ratios, D/H, from 0.2 to 2.0, was carried out for Reynolds number of 1000 by using a multi directional finite difference method on a regular-arranged multi grid. The predicted results are in good agreement with the experimental data. It is found that fluid dynamic characteristics of rectangular cylinders alternate between the high-pressure mode and the low-pressure mode of the base pressure for D/H=02-0.6. We show that this phenomenon is induced by the change of the flow pattern around rectangular cylinders.

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Document Details

Document Type
Technical Report
Publication Date
Apr 14, 2005
Accession Number
ADA447854

Entities

People

  • Akira Rokugou
  • Atsushi Okajima
  • Kohji Kamiyama

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  • Air Platforms

DTIC Thesaurus Topics

  • Base Pressure
  • Computational Fluid Dynamics
  • Cross Flow
  • Electronic Mail
  • Equations
  • Flow
  • Fluid Dynamics
  • Fluid Flow
  • High Pressure
  • Leading Edges
  • Navier Stokes Equations
  • Numerical Analysis
  • Peak Values
  • Reynolds Number
  • Strouhal Number
  • Trailing Edges
  • Vortex Shedding

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  • Aerospace Research.
  • Computational Fluid Dynamics (CFD)
  • Fluid Mechanics and Fluid Dynamics.