Sensitivity Analysis for Water Hammer Problem in Pipelines
Publish place: Iranica Journal of Energy and Environment، Vol: 5، Issue: 2
Publish Year: 1392
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJEE-5-2_003
تاریخ نمایه سازی: 7 آذر 1394
Abstract:
Water hammer is a transient flow in pipes that was created by sudden changes of velocity in pipelines. This phenomenon can cause strong positive and negative pressures in water conveyance pipes andusually it poses pipeline to danger. Overall, water hammer creates by rapidly closing valves, shutting off orsuddenly restarting pumps. It has destructive hydrodynamic effects in pressurized pipelines. In this study,governing equations of water hammer is numerically simulated using MATLAB software. Then, the sensitivityanalysis in negative and positive pressures by changing some variables such as pipe diameter, pipe length andalso wave velocity in pipe was investigated. Numerical simulation is based on characteristic method. Sensitivityanalysis help designers to have well understand of water hammer phenomenon.
Keywords:
Water hammer Transient flow Pump Positive and negative pressure Pipelines MATLAB
Authors
Behnam Mansuri
Faculty of Agriculture, Department of Water Engineering, University of Tabriz, Tabriz, Iran
Farzin Salmasi
Faculty of Agriculture, Department of Water Engineering, University of Tabriz, Tabriz, Iran
Behrooz Oghati
Faculty of Agriculture, Department of Water Engineering, University of Tabriz, Tabriz, Iran