Understanding hydraulic transients
Define hydraulic transients in InfoWorks WS Pro models.
Step-by-step guide
Hydraulic transients (also known as water hammer or surge) are pressure fluctuations caused by a change in fluid velocity.
The magnitude of the event is directly proportional to the change in inertia of the flowing fluid.
Any event that causes the velocity of the water in a network to increase or decrease rapidly can cause a pressure surge or a water hammer.
InfoWorks TS, or Transient System, uses the Wave Characteristic Method and calculates the results at the nodes within the network. The method of characteristics requires calculations at equally spaced interior points in a pipeline.
The objective in transient control is to reduce the magnitude (and if possible, the frequency) of the pressure disturbance.
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