online_discharge_venturi_meter:  Discharge using a Venturi meter A Venturi meter Online head loss using Venturi meter ν = f(T) ReD2/K = (2gh)1/2(D2/ν) K = f(ReD2/K, D2/D1) A2 = (π/4) D22 Q = K A2 (2gh)1/2 [SI units: h in m; D in m; T in °C; Q in m3/s] [U.S. units: h in ft; D in ft; T in °F; Q in cfs] INPUT DATA: Select:   SI units (metric) U.S. Customary units Head loss hρ2 :         Warning: Undefined variable $headlossunits in /var/www/html/ponce/onlinedischargeventurimeter.php on line 651 Diameter D1 :         Warning: Undefined variable $diameter1units in /var/www/html/ponce/onlinedischargeventurimeter.php on line 657 Diameter D2 :         Warning: Undefined variable $diameter0units in /var/www/html/ponce/onlinedischargeventurimeter.php on line 663 Temperature T :         Warning: Undefined variable $temperatureunits in /var/www/html/ponce/onlinedischargeventurimeter.php on line 670 Ratio ρ2 /ρ1 :         [Leave blank to set mercury manometer as default ρ2 /ρ1 = 13.6] OUTPUT: Q =  Warning: Undefined variable $discharge in /var/www/html/ponce/onlinedischargeventurimeter.php on line 692 Deprecated: round(): Passing null to parameter #1 ($num) of type int|float is deprecated in /var/www/html/ponce/onlinedischargeventurimeter.php on line 692 0   Warning: Undefined variable $dischargeunits in /var/www/html/ponce/onlinedischargeventurimeter.php on line 692 • Venturi effect on Wikipedia   Your request was processed at  04:18:28 am on April 3rd, 2025   [ 250403  04:18:28 ]. Thank you for running online_discharge_venturi_meter.   [160721]