ELECTROFLUIDMECHANICS: INVESTIGATION OF THE EFFECTS OF ELECTROSTATIC FIELDS ON HEAT TRANSFER AND BOUNDARY LAYERS

Abstract

A series of experiments were conducted on the influence of an electric field on free convection heat transfer. A heated plate was mounted in a Mach-Zehnder interferometer, and the effects of applied electrical fields were studied. Large changes in effective heat transfer were found.Analytical studies were made of this phenomenon. A suitable mathematical model was formulated on the basis of the Von Karman integral equations and the electrostatic field equations. Correlation between the interferometer test data and the mathematical model was achieved. Exploratory tests of fluid orientation and motion under the influence of dielectric forces were also conducted, and the potential usefulness of the phenomenon is graphically portrayed in pictures showing the motion of water droplets in a ''ZeroG'' model when a field is applied.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1962
Accession Number
AD0288882

Entities

People

  • Henry R. Vellkoff

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Boundary Layer
  • Cameras
  • Charged Particles
  • Computational Fluid Dynamics
  • Electromagnetic Fields
  • Electrostatic Fields
  • Fluid Dynamics
  • Fluid Flow
  • Heat Transfer
  • Measurement
  • Photographic Equipment
  • Photographs
  • Prandtl Number
  • Pressure Distribution
  • Pressure Gradients
  • Steady Flow

Readers

  • Calculus or Mathematical Analysis
  • Combustion and Flow Dynamics.