The essential features for an adequate simulation of water hammer effects are incorporated in the one-dimensional fluiddynamic code ROLAST. This code was developed for the calculation of transient load cases in piping networks, including active and passive components like pumps, valves, check valves, vessels, and allowing for various boundary and initial conditions. The essential models for water hammer treatment are described like condensation, air bubble behaviour and venting, and especially their adaptation to the 1D flow formulation. Examples of validation are given. The role of dissolved air is discussed. The effects of dynamic friction and coupling with the structural analysis on a realistic damping behavior are explained. The code allows the calculation of realistic water hammer loads on the system by considering the reaction of components like check valves at the some time.
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ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference
July 23–27, 2006
Vancouver, BC, Canada
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
0-7918-4755-1
PROCEEDINGS PAPER
Efficient Modeling of the Relevant Effects for Water Hammer Calculation
Tilman Diesselhorst,
Tilman Diesselhorst
Framatome ANP GmbH, Erlangen, Germany
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Werner Schnellhammer
Werner Schnellhammer
Framatome ANP GmbH, Erlangen, Germany
Search for other works by this author on:
Tilman Diesselhorst
Framatome ANP GmbH, Erlangen, Germany
Werner Schnellhammer
Framatome ANP GmbH, Erlangen, Germany
Paper No:
PVP2006-ICPVT-11-93386, pp. 269-276; 8 pages
Published Online:
July 23, 2008
Citation
Diesselhorst, T, & Schnellhammer, W. "Efficient Modeling of the Relevant Effects for Water Hammer Calculation." Proceedings of the ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference. Volume 4: Fluid Structure Interaction, Parts A and B. Vancouver, BC, Canada. July 23–27, 2006. pp. 269-276. ASME. https://doi.org/10.1115/PVP2006-ICPVT-11-93386
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