EXPERIMENTS ON TURBULENT BOUNDARY LAYERS ALONG A CIRCULAR CYLINDER WITH AND WITHOUT SEPARATION

Abstract

Experiments were conducted in a turbulent boundary layer near separation along a circular cylinder with the flow in the axial direction. The pressure gradient along the axis of the cylinder could be varied such that it was possible to maintain three boundary-layer configurations close to separation or with regions of reversed flow: (1) A turbulent boundary layer with skin friction zero; (2) A turbulent boundary layer with a separated region and reattachment further downstream with skin friction zero; (3) A turbulent boundary layer with a region of small but constant skin friction and normal separation. Pressure and skin friction along the cylinder wall, as well as mean velocity profiles in the boundary layer, were measured.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1967
Accession Number
AD0660017

Entities

People

  • Hans Fernholz
  • Paul Gibson

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Boundary Layer
  • Boundary Layer Flow
  • Computational Fluid Dynamics
  • Fluid Dynamics
  • Fluid Mechanics
  • Friction
  • Layers
  • Measurement
  • Pressure Distribution
  • Pressure Gradients
  • Pressure Measurement
  • Reynolds Number
  • Secondary Flow
  • Shape
  • Skin Friction
  • Static Pressure
  • Turbulent Boundary Layer

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.