Pressure Fluctuations in the Regions of Flow Transition,

Abstract

Measurements of wall-pressure fluctuations during natural flow transition and following laminar separation have been made for two forebodies of revolution. The data indicate enormous pressure fluctuations in regions of transition, which in turn have profound implications relative to cavitation-inception scaling and other naval applications related to the transition phenomenon. The Smith amplification method is extensively used to correlate the measured data with semiempirical calculations. Striking success with this correlation is found. The use of trip wires to reduce pressure fluctuations in regions of flow transition is also discussed.

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1975
Accession Number
ADA022935

Entities

People

  • D. E. Hannan
  • T. T. Huang

Tags

DTIC Thesaurus Topics

  • Amplification
  • Cavitation
  • Measurement
  • Revolutions
  • Transitions
  • Trip Wires

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Theoretical Analysis.