Applies To
Product(s):
HAMMER
Version(s):
All
Area:
Calculations
Original Author:
Jesse Dringoli, Bentley Technical Support Group
Problem
How does HAMMER calculate vapor pocket formation and…
Product(s):
HAMMER
Version(s):
CONNECT Edition
Area:
Calculations
Problem
During a transient simulation in HAMMER, how do transient waves reflect off different boundary conditions, such as demands, reservoirs or dead ends…
Hi, I am new to Bentley Hammer. I am analyzing a Gravity pipeline where water will run from 1619 m elevation to 1400 m elevation in a hilly area with ups and downs. When I check " Transient Results Viewer" it gives a dialogue box.
"The hammer results…
buongiorno, dopo tante domande siamo quasi arrivati alla fine del problema.
Dopo aver calcolato un'analisi transitoria di arresto di una pompa con numero di giri variabile ho problemi relativi alla cavitazione e quindi ho inserito dove ho questi problemi…
buonasera, ho riscontrato due errori in questa simulazione:
1) problema cavitazione
2) analizzando i risultati dell'analisi ho notato che le portate (flow) delle tubazioni a valle della pompa spenta non tendono mai a 0
ho pensato:
per risolvere…
I have an in-line pumping system and I wanted to simulate the pump start-up , I set the problem as in the various examples present in the comunity, but the result of the analysis is "wave speed must be greater than zero".
What could be the problem?…
I have carried out transient simulation for an irrigation network. Based on client requirement, I want the occurrence time of the maximum and minimum transient pressures at all junctions. How can we extract this information that at what instant/time we…
Hola, tengo presiones negativas en las "presión extrema cabezales"(extreme pressure and heads),el sistema es un modelamiento transitorio en HAMMER(adjunto archivo)
Ademas me sale este mensaje 44845 "Con tanque unidireccional" "Pipe" "209" "LINEA…
Good Afternoon:
I am trying to model an irrigation net with a pump, reservoir an irrigation net where all are connected.
My particular situation to model is:
No demand in any hydrant
Pump working from the river to the reservoir
Pump shot down…
Hello,
how could I model area change in bentley hammer ?
Is there any method rather than splitting pipe? does pipe splitting do better simulation for Wave Reflection and Transmission at an expansion and a contraction?
Hello forum,
I'm having doubt (due to client "inquiries"), therefore I'm addressing this question to you all.
I'm using sealed, gas-law model, hydropneumatic tank element, to model the surge vessel. Total volume is 200m3 and initial gas volume is…
Hi,
I am modelling a simple system to compare the results to some codes that I have. But, despite having all the configurations similar to codes, I cannot get similar pressure fluctuation. Could you please have a look and let me know the reason? …
Product(s):
HAMMER
Version(s):
CONNECT Edition, V8i
Area:
Modeling
Overview
This tech-note discusses how to configure the Surge Tank element for transient analysis in HAMMER.
Background
A Surge Tank (also known as a …
Applies To
Product(s):
HAMMER
Version(s):
V8i, CONNECT Edition
Area:
Modeling
Original Author:
Jesse Dringoli, Bentley Technical Support Group
Problem
When computing a transient simulation…
Applies To
Product(s):
Bentley HAMMER
Version(s):
08.11.xx.xx
Area:
Modeling
Original Author:
Scott Kampa, Bentley Technical Support Group
How To
How to model demand patterns in Bentley HAMMER…
Have you ever wanted to perform a transient analysis on a water network that you've designed? Did you know that you can configure the transient analysis while you design the steady state/EPS water model in WaterCAD or WaterGEMS, then directly open the…
Product(s):
Bentley HAMMER
Version(s):
08.11.XX.XX
Environment:
N\A
Area:
Calculations
Problem
What causes transient waves to dampen? According to the Help and the Advanced Water Distribution Modeling…
Applies To
Product(s):
HAMMER
Version(s):
V8i, CONNECT Edition
Area:
Modeling
Original Author:
Scott Kampa, Bentley Technical Support Group
Overview
This TechNote will describe steps to model…
Product(s):
HAMMER
Version(s):
V8i SELECTseries 2 (08.11.02.31)
Area:
N/A
Overview
The SELECTseries 2 release of HAMMER V8i includes many new features and improvements. This technote explores each change.
- Support for…
Product(s):
HAMMER
Version(s):
CONNECT Edition, V8i
Area:
Modeling
Overview
This TechNote explains how the Discharge to Atmosphere (D2A) element works and its typical application in transient simulations in HAMMER. The example…
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…
Product(s):
HAMMER
Version(s):
CONNECT Edition, V8i
Area:
Modeling
Original Author:
Jesse Dringoli, Bentley Technical Support Group
Overview
This TechNote explains how the surge valve element works and its typical application…
Applies To
Product(s):
HAMMER
Version(s):
V8i, CONNECT Edition
Area:
Modeling
Original Author:
Jesse Dringoli, Bentley Technical Support Group
Overview
This TechNote explains how the Air Valve…
This is a list of articles containing general FAQs for Bentley WaterGEMS and WaterCAD products.
To search within this page, press [Ctrl]+F.
Calculations
Estimating pump specific speed
Transient Force Calculations
Input & Modeling
What…