Turbulence Structure of Mixing Swirling Flows

Abstract

This study is an experimental investigation of a swirling inner flow which develops along a constant-diameter centerbody in the presence of an unconfined, axially-directed outer flow. The data which have been acquired include local mean velocity and static pressure profiles at six streamwise locations for different prescribed mass flow rate ratios. Local wall shear stress measurements were made at these six streamwise locations in order to investigate local law-of-the-wall behavior in the vicinity of the centerbody. Reynolds stress measurements were also made in order to quantify the local turbulence structure. This report describes the scope of these measurements and the physical characteristics of the flow which have been deduced from the data. The implications of the results from a turbulence modeling point of view is also discussed. (kr)

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Document Details

Document Type
Technical Report
Publication Date
Dec 10, 1989
Accession Number
ADA216628

Entities

People

  • Fredrick B. Gessner

Organizations

  • University of Washington

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Boundary Layer
  • Classification
  • Computational Fluid Dynamics
  • Flow Rate
  • Fluid Dynamics
  • Fluid Flow
  • Hot Wire
  • Mass Flow
  • Measurement
  • Mechanical Properties
  • Pressure Distribution
  • Reynolds Number
  • Richardson Number
  • Static Pressure
  • Turbulence
  • Turbulent Flow
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.