A Contribution to the Measurement of Turbulence with the Aid of Hot-Wire Anemometers,

Abstract

A study was made of the measuring technique for Reynolds shear-stresses. The experiments involved the use of the wind tunnel of the Institute of Thermomechanics of the Czechoslovak Academy of Sciences in Prague. The tests were conducted at ground speeds of about 25 m/sec. It was established that in measuring Reynolds shear-stresses with two hot wires the results may be greatly distorted due to dust deposits on the probes and the differences in the sensitivity to velocity fluctuations. It is of importance that the physical properties of the hot wires be identical. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 20, 1969
Accession Number
AD0859927

Entities

People

  • V. Rehak

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Anemometers
  • Atmospheric Motion
  • East Germany
  • Ground Speed
  • Hot Wire
  • Hot Wire Anemometers
  • Measurement
  • Mechanical Properties
  • Physical Properties
  • Shear Stresses
  • Stresses
  • Thermodynamic Properties
  • Wind
  • Wind Tunnels
  • Wire

Fields of Study

  • Engineering
  • Physics

Readers

  • Fluid Dynamics.
  • Materials Science and Engineering.
  • Political Science/ International Relations/ European Studies