Transition to Turbulence in Constant-Acceleration Pipe Flow

Abstract

The purpose of this report is to present results from the second Naval Underwater Systems Center project on accelerating flows. The main objectives of this second project were to investigate the details of the transition process and to validate the transition correlation parameters developed under the first project. The details of the transition process were investigated using the existing 5-cm-diameter test section, but with one axial location supplemented with additional wall shear stress sensors in an effort to detect the propagation of turbulence. Validation of the previously developed transition correlation parameters was accomplished by conducting constant-acceleration experiments on a new and larger 9-cm-diameter test section. Additionally, transition for mean accelerations lower than those tested previously was investigated on the 9-cm-diameter test section. Fluid mechanics, Accelerating pipe flow.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1988
Accession Number
ADA204692

Entities

People

  • P. J. Lefebvre

Organizations

  • Naval Underwater Systems Center

Tags

Communities of Interest

  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Computational Fluid Dynamics
  • Control Systems
  • Data Acquisition
  • Flow Fields
  • Flow Rate
  • Instrumentation
  • Layers
  • Measurement
  • Pipe Flow
  • Pressure Gradients
  • Reynolds Number
  • Shear Stresses
  • Stainless Steel
  • Steady State
  • Turbulent Flow
  • Unsteady Flow

Fields of Study

  • Physics

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Combustion and Flow Dynamics.
  • Plasma Physics / Magnetohydrodynamics