Results 291 to 300 of about 280,923 (348)
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Nature, 1958
Waterhammer Analysis By John Parmakian. (Prentice-Hall Civil Engineering and Engineering Mechanics Series.) Pp. xiv + 161. (Englewood Cliffs, N.J.: Prentice-Hall, Inc.; London: Longmans, Green and Co., Ltd., 1955.) 45s. net.
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Waterhammer Analysis By John Parmakian. (Prentice-Hall Civil Engineering and Engineering Mechanics Series.) Pp. xiv + 161. (Englewood Cliffs, N.J.: Prentice-Hall, Inc.; London: Longmans, Green and Co., Ltd., 1955.) 45s. net.
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Giant intracranial aneurysm water-hammer effect
Practical Neurology, 2019A middle-aged man presented with new-onset vertigo and truncal imbalance. MR scan of brain showed an incidental giant partially thrombosed anterior communicating artery aneurysm with concentric blood products of varying age (figure 1). Subsequent catheter angiography showed the ‘water-hammer’ effect (video 1).
Adam A Dmytriw +2 more
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Offshore Technology Conference, 1978
ABSTRACT The water hammer phenomenon appears to be naturally suited to the underwater driving of large offshore piles. Attributes include: no pile extensions to the surface; no practical depth limitations, and driving ability increases with depth; good physical compatibility and impedance-match to the pile; driving ...
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ABSTRACT The water hammer phenomenon appears to be naturally suited to the underwater driving of large offshore piles. Attributes include: no pile extensions to the surface; no practical depth limitations, and driving ability increases with depth; good physical compatibility and impedance-match to the pile; driving ...
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Water hammer reduces fouling during natural water ultrafiltration
Water Research, 2012Today's ultrafiltration processes use permeate flow reversal to remove fouling deposits on the feed side of ultrafiltration membranes. We report an as effective method: the opening and rapid closing of a valve on the permeate side of an ultrafiltration module. The sudden valve closure generates pressure fluctuations due to fluid inertia and is commonly
Broens, F. +7 more
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Journal of the Hydraulics Division, 1969
Simplified methods of calculating hydraulic transients are set forth, with techniques for increasing the computing time interval over that permitted by the characteristics method. Lumping and interpolation methods are compared with mixed implicit and characteristics methods.
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Simplified methods of calculating hydraulic transients are set forth, with techniques for increasing the computing time interval over that permitted by the characteristics method. Lumping and interpolation methods are compared with mixed implicit and characteristics methods.
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Numerical Calculation of Water Hammer
2023In this chapter, the Method of Characteristics (MOC) is detailed and used to solve the mathematical models defined in the second chapter, where the reservoirpipe-valve-system is considered. The wave-speed adjustment (WSA) scheme is preferred for the MOC.
Abdelaziz Ghodhbani +3 more
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Journal AWWA, 1938
Water hammer is still a "bugbear" to water works men. It seems to be forever with us in causing breakage and leaks in the distribution system. It is of concern to the superintendent because his service of supply is closely allied with the work of architects, engineers, and plumbers in making satisfactory distribution systems in buildings.
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Water hammer is still a "bugbear" to water works men. It seems to be forever with us in causing breakage and leaks in the distribution system. It is of concern to the superintendent because his service of supply is closely allied with the work of architects, engineers, and plumbers in making satisfactory distribution systems in buildings.
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Australian Journal of Civil Engineering, 2010
Water hammer could be damped in pipe networks using a short piece of plastic pipe of a diameter much larger than the diameter of the pipe in which water hammer is to be controlled. Experiments using four different polyvinyl chloride (PVC) pipe sizes, and different damper parameters and materials show that the device can effectively reduce pressure ...
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Water hammer could be damped in pipe networks using a short piece of plastic pipe of a diameter much larger than the diameter of the pipe in which water hammer is to be controlled. Experiments using four different polyvinyl chloride (PVC) pipe sizes, and different damper parameters and materials show that the device can effectively reduce pressure ...
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Journal of the Power Division, 1957
Design criteria for including effects of water hammer in turbine penstock and pump discharge line installations; possible conditions of operation and suitable factors of safety assigned to each contingency.
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Design criteria for including effects of water hammer in turbine penstock and pump discharge line installations; possible conditions of operation and suitable factors of safety assigned to each contingency.
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The Journal of the Acoustical Society of America, 1997
The invention provides apparatus for shaking structures such as fins in a fluid agitator, shaking tables, shaking screens, conveyors, or the walls of bins or hoppers. The apparatus is driven by a hydraulic driving system in which high pressure pulses are generated by repeatedly creating water hammer within a conduit.
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The invention provides apparatus for shaking structures such as fins in a fluid agitator, shaking tables, shaking screens, conveyors, or the walls of bins or hoppers. The apparatus is driven by a hydraulic driving system in which high pressure pulses are generated by repeatedly creating water hammer within a conduit.
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