online_explicit_diameter:  Explicit equation for pipe diameter D Comparison of laminar and turbulent flow     ν = f(T) B* = ghf/L D = 0.66[(ks1.25Q9.5/B*4.75) + (νQ9.4/B*5.2)]0.04 [SI units: hf in m; L in m; Q in m3/s; ks in m; T in °C; D in m] [U.S. units: hf in ft; L in ft; Q in cfs; ksin ft; T in °F; D in ft] Explicit equation for discharge Explicit equation for friction factor INPUT DATA: Select:   SI units (metric) U.S. Customary units Head loss hf :         Warning: Undefined variable $headlossunits in /var/www/html/ponce/onlineexplicitdiameter.php on line 431 Pipe length L :         Warning: Undefined variable $pipelengthunits in /var/www/html/ponce/onlineexplicitdiameter.php on line 438 Discharge Q :         Warning: Undefined variable $dischargeunits in /var/www/html/ponce/onlineexplicitdiameter.php on line 444 Absolute roughness ks :         Warning: Undefined variable $absoluteroughnessunits in /var/www/html/ponce/onlineexplicitdiameter.php on line 450 Temperature T :         Warning: Undefined variable $temperatureunits in /var/www/html/ponce/onlineexplicitdiameter.php on line 457 OUTPUT: D =  Warning: Undefined variable $diameter in /var/www/html/ponce/onlineexplicitdiameter.php on line 475 Deprecated: round(): Passing null to parameter #1 ($num) of type int|float is deprecated in /var/www/html/ponce/onlineexplicitdiameter.php on line 475 0 Warning: Undefined variable $diameterunits in /var/www/html/ponce/onlineexplicitdiameter.php on line 475   Your request was processed at  10:44:41 pm on April 3rd, 2025   [ 250403  22:44:41 ]. Thank you for running online_explicit_discharge.   [160607]