Relationships Between Turbulent Wall Pressure and Velocity Field Sources

Abstract

Although the study of wall pressure fluctuations (WPFs)has a long and venerable history, relatively little is known about the nature of the source terms responsible for the wall pressure. This study takes advantage of the three-dimensional velocity fields available from turbulence simulations to try to answer some long-standing questions about the nature of WPFs. Which parts of the boundary layer generate the various wave number regions of the wall pressure? What are the dominant source terms? What are the relative magnitudes of the mean-shear (MS) and turbulence-turbulence (TT)wall pressures? What physical processes in the boundary layer generate the wall pressure?

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Document Details

Document Type
Technical Report
Publication Date
Dec 09, 1998
Accession Number
ADA400734

Entities

People

  • Peter A. Chang Iii

Organizations

  • Naval Surface Warfare Center Carderock Division

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Boundary Layer
  • Computational Fluid Dynamics
  • Computational Science
  • Databases
  • Department Of Defense
  • Fluid Dynamics
  • Fluid Mechanics
  • Large Eddy Simulation
  • Mechanical Engineering
  • Mechanics
  • Physics Laboratories
  • Reynolds Number
  • Stratified Fluids
  • Three Dimensional
  • Turbulence
  • Turbulent Flow
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

  • Educational Psychology
  • Fluid Dynamics.