Acoustic Computations for a Low Mach Number Heated Cylinder

Abstract

This paper describes the sound generated by uniform flow over a heated cylinder, calculated for a range of Reynolds and Grashof numbers. The time-dependent, incompressible flow field is computed using a vorticity-stream function method containing the Boussinesq approximation. Using the computed incompressible flow field, the radiated sound is computed using a low frequency Green's function technique. Snapshots of the vorticity and temperature fields and time histories of the radiated sound pressure are presented and compared with existing results. Computational Acoustics (CA), Heated cylinder

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1994
Accession Number
ADA281182

Entities

People

  • T. S. Mautner

Organizations

  • Naval Command, Control and Ocean Surveillance Center

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Buoyancy
  • Computational Fluid Dynamics
  • Computations
  • Equations
  • Flow
  • Flow Fields
  • Fluid Dynamics
  • Fluid Flow
  • Frequency
  • Heat Transfer
  • Incompressible Flow
  • Isotherms
  • Mach Number
  • Navier Stokes Equations
  • Pressure Distribution
  • Reynolds Number
  • Sound Pressure

Fields of Study

  • Physics

Readers

  • Acoustical Oceanography.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Fluid Mechanics and Fluid Dynamics.