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transients
Valve Closure
backflow preventer
Control Valve
Controls
Example model
Haestad Methods
HAMMER
PRV
PSV
Pumps
reviewed2017
Reviewed2021
TCV
Transient Analysis
Valves
Valves of Various Types
Water and Sewer
water and wastewater
water distribution
Water Hammer
Water Modeling
waterhammer
Valve Closure example
Jesse Dringoli
This example model illustrates different ways to model valve closure with a TCV. Advanced TCV closure modeling is not included. Note: This model can be opened in HAMMER version 08.11.00.30 and above.
TCV_Closure_Example.zip
over 14 years ago
Bentley Files
TSGWaterWasteWater
Modeling Reference - Valve Closure
Luca Santos Billis
Applies To Product(s): HAMMER, WaterGEMS, WaterCAD Version(s): V8i, CONNECT Edition Area: Modeling Original Author: Jesse Dringoli, Bentley Technical Support Group Overview This technote explains…
3 months ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Wiki
Distribution Sytem Wide Hammer and Transient Analysis of RPZ
bpeskin
I am attempting to set up a model to demonstrate how a RPZ (Reduced Pressure Principle Backflow Preventer) will respond to Hammer. For those unfamiliar with the operation of an RPZ, I have attached a document which outlines this very well. …
RPZ.pdf
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over 14 years ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum
Control valve response to transient event
LWillnow
Is there a way to model the response of a control valve to a transient event beyond manually inputting the transient operational pattern? An example would be what happens to a PSV when the transient pressure drops below the pressure set point.
over 12 years ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum
Re: Modeling a 1.5 second valve closure at Airplane Fueling Nozzle?
Jesse Dringoli
Hello, The pumps are going to operate based on the system conditions (where the pump curve intersects the system head curve.) So, you'll need to "model what you've got" to get the right pump operating point. Meaning, if there aren't FCVs in reality…
over 13 years ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum