Cavitation Parameters for Outlet Valves
Testing of regulating valves to determine their flow and cavitation characteristics in order to make a practical and economic selection of valves for use in hydraulics control is described....

Review of Cavitaion Research on Valves
Critical cavitation indices are presented for a 12-in. ball and a 12-in. butterfly valve installed in a closed conduit system with, a sudden expansion downstream of the valves. Tests were...

Flow Characteristics of Butterfly and Spherical Valves
Discharge coefficients of butterfly and spherical valves are given. The data were obtained from tests of 10-in. diam models. Four butterfly valve disks were tested, all lenticular in shape....

Reducing Cavitation in Valves
Critical cavitation indices are presented for a 12-in. ball and a 12-in. butterfly valve installed in a closed conduit with an enlarged section downstream. Tests were conducted under normal...

Stress Concentration in Strain-Gradient Bodies
An analytical solution is presented to a boundary-value problem in the linear elasticity in which potential energy depends on strains and strain gradients. The problem considered is that...

Some Analytical Results for Planet 90° Bend Flow
Analysis of inviscid nonturbulent flow around bends preceded and followed by straight conduits on a potential and frozen-vorticity basis indicates the manner in which bend curvature and...

Grouting a Dam Cutoff in Cavernous Limestone
Cutoff treatment at Logan Martin Dam was especially important in providing a stable and watertight foundation. Complex cavity systems occurred in the fractured dolomitic limestone bedrock....

Cost and Economics of Maintenance of Turbine Runner Cavitation
Five, single unit, 20,000-kw hydroelectric power plants, built with turbine settings as specified by the manufacturer have runner cavitation or pitting repair problems in a short time...

Viscoelastic Wave Interaction with Cylindrical Cavity
Stresses at a free-field point and on the boundary of a circular hole in a viscoelastic plate subjected to air shock loading were determined by photoviscoelastic and moiré methods. The...

Closure to "Water Hammer Resulting from Cavitating Pumps" (November 1964)

Spherical Elastic Plastic Shock Propagation
The response of an infinite, elastic, perfectly plastic medium governed by the Von Mises yield condition is considered, containing a spherical cavity whose surface is subjected to a uniform...

Discussion of "Water Hammer Resulting from Cavitating Pumps" (November 1964)

Closure to "Two-Dimensional Jet and Cavity Flows" (March 1964)

Pressure Generated by Cavitation in a Pipe
When the velocity of a liquid in a pipe is rapidly decreased at a point, such as behind a rapidly-closing valve or a pump following power failure, the pressure at this point may drop to...

Two-Dimensional Jet and Cavity Flows
A method is given for calculating the location of free streamlines and the flow coefficient in certain two-dimensional, potential flows: Jet flow from a contracting channel and cavitating...

Shapes for Appurtenances in Stilling Basins
Baffle pier experiments in hydraulic jump type of stilling basins indicate that wedge-shaped blocks with a vertex angle of 120○ dissipate more energy in a shorter length than rectangular...

Water Jet Pump
The water jet pump, when designed with experimentally obtained optimum dimensions, can achieve efficiencies in the range of 35% to 40%. The design depends on the selected nozzles and diffuser,...

Water Hammer Resulting from Cavitating Pumps
In the transport of phosphate-ore slurry in a pipeline containing pumps in series, a pump will occasionally blow up. Previously, investigated failure that stemmed from water hammer, as...

Closure to "Cavitation in Hydraulic Structures: Problems Created by Cavitation Phenomena" (January 1963)

Closure to "Expansion of a Cavity in a Saturated Clay Medium" (July 1963)

 

 

 

 

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