Hydraulics & Hydrology
Hydraulics & Hydrology Recent Articles
Pumps & Systems magazine had a good article recently on the need to calibrate pressure gauges. They pointed out that pressure gauges (and sensors) tend to lose accuracy over time; specifically, that gauges should be calibrated at a regular interval,...
Pressure zones are important but can be difficult to understand. OpenFlow WaterGEMS and OpenFlows WaterCAD makes creating and managing pressure zones easy....
In the blog A Multi-Species Decay Model to Support Cost-Effective Chlorination in Distribution Systems, a cost-effective chlorination strategy is defined as the least-cost combination of doses (locations and rates) that achieves effective chlorination for a given stable flow regime and...
Water utilities are required to achieve effective chlorination by maintaining a detectable free chlorine concentration to the system extremities. The initial dose required to inactivate pathogens may subsequently completely react with chemical contaminants remaining after treatment but before the water...
Electromagnetic Pulses (EMPs) are short bursts of electromagnetic radiation. While small EMPs can occur normally, large EMPs can interfere with or even destroy electric power supplies and electronic equipment. EMPs can occur naturally from solar flares or lightening, or they...
Most hydraulic engineers would admit that the Darcy-Weisbach equation is the most theoretically correct equation for head loss in pipe flow. It is based on a force balance between the driving forces of pressure and gravity, offset by head loss...