AN EXPERIMENTAL STUDY TO DETERMINE THE UTILITY OF STANDARD COMMERCIAL HOT-WIRE AND COATED WEDGE-SHAPED HOT-FILM PROBES FOR MEASUREMENT OF TURBULENCE IN WATER-CONTAMINATED AIR FLOWS. PART II.

Abstract

Experiments were performed with the DISA 55D05 constant temperature anemometer and 55A8 hot-film probe under simulated field conditions. Procedures supplemental to the manufacturer's recommendations were developed for simplifying the operation of the equipment. The response in this configuration to water droplet impact was investigated. In addition a study of the noise and expected atmospheric signal plus noise to noise ratio as a function of frequency, flow parameters, and system variables was conducted. It is concluded that the system can provide useful turbulence measurements, for example, those appropriate to the study of energy dissipation in storms, even in the presence of heavy rain. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1969
Accession Number
AD0689140

Entities

People

  • Francis J. Merceret Jr.

Organizations

  • Johns Hopkins University

Tags

DTIC Thesaurus Topics

  • Air Flow
  • Anemometers
  • Communication Equipment
  • Dissipation
  • Field Conditions
  • Flow
  • Frequency
  • Hot Wire
  • Measurement
  • Standards
  • Turbulence
  • Wire

Fields of Study

  • Physics

Readers

  • Atmospheric Remote Sensing.
  • Fluid Dynamics.
  • Software Engineering