Development of LES Methodology for the Analysis of High - Reynolds Number 2-D and 3-D Dynamic Stall Phenomenon.

Abstract

The ultimate objective of this project was to analyze forced unsteady separated flows, through numerical simulation of high-Reynolds number flows. The velocity-vorticity form of the Navier-Stokes equations were to be solved using the Large-Eddy Simulation (LES) or the coarse-grid Direct Numerical Simulation (DNS) approaches. In the first year of this project, an effort was initiated and reported to develop LES technique for forced unsteady separated flows using (m-V) formulation. Although an effort, which was spearheaded to obtain 3-D simulation of (m-V) formulation, required additional theoretical work due to an incomplete boundary condition at the surface for vorticity, the corresponding 2-D results were obtained using a backstep duct geometry and presented at the 14th International Conference on Numerical Methods in July 1994. This effort was carried out in the background, while new projects have been initiated.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1996
Accession Number
ADA311398

Entities

People

  • K. N. Ghia
  • U. Ghia

Organizations

  • University of Cincinnati

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Boundary Layer
  • Computational Fluid Dynamics
  • Computational Science
  • Differential Equations
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Geometry
  • Mechanics
  • Navier Stokes Equations
  • Partial Differential Equations
  • Three Dimensional
  • Turbulent Mixing
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)