Effects of intrinsic three-dimensionality on the drag characteristics of a normal flat plate

F. M. Najjar, S. P. Vanka

Research output: Contribution to journalArticlepeer-review

Abstract

A three-dimensional direct numerical simulation of the wake of a flat plate held normal to a free stream has been conducted for a Reynolds number of 1000, using a high-order finite-difference scheme. The calculated flow structures and the coefficient of drag are shown to be markedly different from those obtained from an equally resolved two-dimensional simulation. The three-dimensional simulation is able to account for the intrinsic three-dimensionality that develops beyond a certain critical Reynolds number (∼200). The time-averaged drag predicted by the three-dimensional simulation is in good agreement with the experimental data, and also captures a low-frequency time variation that is seen in the experiments.

Original languageEnglish (US)
Pages (from-to)2516-2518
Number of pages3
JournalPhysics of fluids
Volume7
Issue number10
DOIs
StatePublished - 1995

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes
  • Computational Mechanics

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