AN EXPERIMENTAL AND THEORETICAL INVESTIGATION OF CONIC ENTRANCE ORIFICE PERFORMANCE IN THE LOW REYNOLDS NUMBER DOMAIN

A constant discharge coefficient (Cd), relating flow rate to the square root of the differential pressure across a primary element, is a desirable characteristic of any flow sensor to be used in shipboard automatic control systems. Although the simple, square edged orifice meets this criterion for turbulent flows, Cd does not remain constant for applications in the laminar and transitional regions of pipe Reynolds number (ReD). In a quest for a device which exhibits both simplicity and constant Cd at low ReD, twelve conic entrance orifice plates were tested.

• Corporate Authors:

  Naval Ship Engineering Center

  , ZZ N/A   
• Authors:
  • Bruner, R F
• Publication Date: 1972-4-18

Media Info

• Pagination: 69 p.

Subject/Index Terms

• TRT Terms: Automated vehicle control; Automatic control; Flow control (Air traffic control); Flow measurement
• Old TRIS Terms: Automatic control systems; Automatic navigation; Flow control
• Subject Areas: Marine Transportation; Operations and Traffic Management;

Filing Info

• Accession Number: 00035655
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: NAVSECPHIL ADIV-
• Files: TRIS
• Created Date: Oct 27 1973 12:00AM