Behavior of Spherical Particles at Low Reynolds Numbers in a Fluctuating Translational Flow. Preliminary Experiments

Abstract

The behavior of small spheres in non-steady translational flow has been studied experimentally for values of Reynolds number from 0 to 3000. The aim of the work was to improve the quantitative understanding of particle transport in turbulent gaseous media, a process of extreme importance in powerplants and energy transfer mechanisms. Particles, subjected to strong sinusoidal oscillations parallel to the direction of steady translation, were studied for changes in average drag coefficient depending upon translational Reynolds number, the frequency, and amplitude of the oscillations. The occurrence of maximum effect suggests non-linear interaction between wake vortex shedding and the oscillation.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1972
Accession Number
AD0742992

Entities

People

  • Edward E. Zukoski
  • Murray K. Hill

Organizations

  • California Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Amplitude
  • California
  • Computational Fluid Dynamics
  • Contracts
  • Diameters
  • Equations
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Flow
  • Frequency
  • Oscillation
  • Particles
  • Physics Laboratories
  • United States
  • Vortex Shedding

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Fluid Dynamics.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.