A Large-Eddy Simulation of the Shear-Driven Cavity Flow

Abstract

The three-dimensional shear-driven cavity flow is numerically investigated at Reynolds numbers of 5000 and 10,000. This investigation focuses on the unsteadiness and turbulent characteristics of the flow. At the moderate Reynods number (Re = 5000) where the cavity flow is fully laminar, a direct numerical simulation (DNS) is used; at the higher Reynolds number (Re = 10,000), large-eddy simulation (LES) methodology is used to predict the cavity flow. Establishing a suitable form for the subgrid scale (SGS) turbulence model in this complex flow is guided by the DNS results at Re = 5000. Additionally, the SGS model is verified against DNS results at Re = 7500, where the cavity flow is known through experimentation to be locally transitional. The LES results verify the published experimental evidence, as well as introduce new flow features within the cavity.

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Document Details

Document Type
Technical Report
Publication Date
Dec 31, 1993
Accession Number
ADA634245

Entities

People

  • Stephen A. Jordan

Organizations

  • Naval Undersea Warfare Center

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Computational Fluid Dynamics
  • Energy Transfer
  • Equations
  • Experimental Data
  • Flow Visualization
  • Fluid Dynamics
  • Geometry
  • Large Eddy Simulation
  • Power Spectra
  • Reynolds Number
  • Simulations
  • Steady Flow
  • Three Dimensional
  • Turbulence
  • Turbulent Mixing
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Fluid Dynamics.