Direct Numerical Simulation of Jet Noise

Abstract

In this paper we will investigate the sound field of a round turbulent jet with a Mach number of 0.6 based on the jet centerline velocity and the ambient speed of sound. The sound field is obtained by solving a wave equation for the acoustic field. Two different acoustic source terms are used as right hand side of the wave equation. One in which the source term is given by traditional Light hill stress tensor and a second one in which the source term is based on the vorticity in the fluid.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2001
Accession Number
ADP013679

Entities

People

  • Bendiks J. Boersma

Organizations

  • Delft University of Technology

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Fields
  • Boltzmann Equation
  • Cartesian Coordinates
  • Coordinate Systems
  • Differential Equations
  • Diffusion Coefficient
  • Energy
  • Equations
  • Flow
  • Flow Fields
  • Jet Engines
  • Kinetic Energy
  • Mach Number
  • Navier Stokes Equations
  • Simulations
  • Stresses
  • Wave Equations

Readers

  • Acoustical Oceanography.
  • Fluid Mechanics and Fluid Dynamics.
  • Plasma Physics / Magnetohydrodynamics