MAINTAINING FLOW SIMILARITY IN CALIBRATING NOZZLES USED IN STUDYING THE WORKING PROCESSES IN PUMPS,

Abstract

The significance of maintaining equal Reynolds numbers (Re) on both sides of a nozzle during the calibration of nozzle type water meters in an air flow was examined. This requirement is not essential in the calibration at Re is greater than 5.8 times 10 (to the 3rd power) and air flow rates 10-22 m./sec. cylindrical or spherical nozzles with lateral aperatures positioned within 30 to 35 degrees from the nozzle axis. Suggestions are given concerning nozzle calibration for high water flow rates. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 26, 1969
Accession Number
AD0695197

Entities

People

  • N. S. Ershov

Organizations

  • National Air and Space Intelligence Center

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Air Flow
  • Calibration
  • Flow
  • Flow Rate
  • Fluid Dynamics
  • Fluid Flow
  • Reynolds Number
  • Water Flow

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Phased Array Antenna Design.