Simulation of Flow and Dispersion Around a Surface-Mounted Cube

Abstract

The time-accurate computational model FAST3D is used to investigate flow over a cube mounted on a flat surface. The effect of resolution, boundary conditions, and the form of the inflow velocity profile on flow evolution and passive tracer dispersion in the vicinity of the cube is considered. Computational results are compared with wind tunnel and water tank data published by a number of authors. It is found that the flow computed around a surface-mounted cube is sensitive to both the form of the upstream velocity profile as well as to conditions at the baseplate surface. Furthermore, time-dependent effects appear to be crucial to the accumulation of accurate flow field statistics and thus a correct understanding of the flow and dispersion patterns.

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Document Details

Document Type
Technical Report
Publication Date
Aug 29, 2003
Accession Number
ADA417469

Entities

People

  • Bohdan Z. Cybyk
  • Jay Paul Boris
  • Sally A. Cheatham

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Layer
  • Computational Fluid Dynamics
  • Dispersions
  • Equations
  • Experimental Data
  • Flow
  • Flow Fields
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Large Eddy Simulation
  • Physics Laboratories
  • Simulations
  • Statistics
  • Turbulence
  • Turbulent Mixing

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Fluid Mechanics and Fluid Dynamics.