Denali National Park Weather Forecast for Wednesday, April 19. The Denali National Park, AK forecast for Apr 19 is 47 degrees and Patchy rain possible . There is 69 percentage chance of rain and 12 mph winds from the South-Southeast.
Topics: Introduction Equations Discharge Coefficients Error Messages References. Introduction to Orifice Flow Meter Calculation. Orifice flow meters are used to determine a liquid or gas flow rate by measuring the differential pressure (P1 - P2) across the orifice plate. The two standard pressure tapping arrangements for small bore orifices are shown in the drawings; the location of the pressure taps affects the discharge coefficient somewhat.
We also have orifice calculations for gas flow (D<5 cm and D> 5 cm); and calculations for flow through nozzle and venturi flow meters. Equations for Small Bore Orifice for Liquids To orifice calculation at top of page. The calculations on this page are for orifices carrying a liquid as described in ASME (2001).