• Darwin Calibrator - Large Difference
    Staci Hartz
    Hi, I'm calibrating a water system using the Darwin Calibrator. After I set-up the calibration study I like to complete a manual run without adjusting the roughness and demand groups to see how closely...
  • Bentley HAMMER: When using "Pump Shut-off after time delay" option Pump head is beyond shut-off head due to increased pump speed
    Georgio Rizk
    Hi, I have a transient hydraulic model developed in Bentley Hammer Connect 4 version 10.04.00.106. The scenario consists of closing the valve downstream a running pump after 190s and then turning...
  • Interconnected Ponds | Pipe Sizing
    RJRM
    Which modeling for the pipe sizing of Interconnected Ponds it can be used? Context Layout: Pond 1 --------------PIPE-----------Pond 2 Headwater: 1.00 Tailwater: 0.85 Qd: 89 cfs Lpipe around 100 m
  • Constant nominal torque - Flow and speed change
    Arjang Alidai
    The nominal torque is calculated as per Hammer article and the provided excel file: Shaft Torque = 29.5 N.m (Initial pump flow =27l/s, initial pump head = 9.43m, pump operating speed = 1051.5rpm, Pump...