LES Based Trailing-Edge Noise Prediction

Abstract

The paper presents a large-eddy simulation of the flow over a sharp trailing edge. To minimize the computational effort inflow conditions for fully turbulent compressible boundary layers are developed. The LES findings show good agreement with other numerical and experimental data. For the prediction of the trailing-edge noise, acoustic perturbation equations are derived, which are excited by sources determined from results of a compressible flow simulation. Results of acoustic fields are presented for a model problem.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2001
Accession Number
ADP013690

Entities

People

  • M. Meinke
  • R. Ewert
  • W. A. El-askary
  • W. Schroeder

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Fields
  • Acoustic Waves
  • Boundary Layer
  • Compressible Flow
  • Computational Fluid Dynamics
  • Equations
  • Experimental Data
  • Flow
  • Flow Fields
  • Fluid Flow
  • Frequency
  • Large Eddy Simulation
  • Layers
  • Mach Number
  • Skin Friction
  • Trailing Edges
  • Turbulent Boundary Layer

Fields of Study

  • Physics

Readers

  • Acoustical Oceanography.
  • Fluid Mechanics and Fluid Dynamics.