Nonsteady Flow to Nonpenetrating Well
A nonequilibrium formula has been obtained to predict the nonsteady drawdown distribution near a cavity well discharging from a nonleaky artesian aquifer. A graphical method has been suggested...

Uplift Pressures on Hollow Gravity Dams
Closed-form solution has been obtained with the help of the Schwartz-Christoffel transformation for the determination of uplift pressures on hollow gravity dams. The uplift pressures have...

Unsteady Features of Flow Past a Cavity
Measurements of the distributions of total turbulence intensity across the shear layer and corresponding power spectra reveal that the presence of the impingement edge of the cavity decreases...

Leading Edge Cavities - Non-Steady Effects

Assessment of Localized Subsidence (Before the Fact)

Experience with Subsidence Due to Mining

Instrumentation Systems for Mining Subsidence

Subsidence Due to Consolidation Including Nonlinear Behavior

Plane Periodic Flow Predictions for Fusiform Aneurysms
Pathological bulges or dilatations of an artery are found in a variety of forms at diverse locations in the vasculature. In this paper, unsteady flow solutions in a two-dimensional wavy...

Biomechanics of Closed Head Impact
This paper begins with a survey and exposition of the biomechanics of head impact covering three major areas of study: mechanical properties of the constituent tissues, animal and cadaver...

Some Characteristics of Unstable Flow Past Slots
Analysis of flow instability reveals that, as a result of fluid-dynamic feedback, flow fluctuations in the vicinity of slots (or cavities) may occur within narrow-band dominant frequencies...

Contact Problems for Solids Containing Cavities
An integral transform solution is presented to treat the non-axisymmetric indentation problem of a punch in contact with a semi-infinite solid containing a stress-free cylindrical cavity....

Polymer-Impregnated Concrete at Dworshak Dam
Dworshak Dam is the third highest concrete dam in the United States. After moderate usage, the stilling basin and an outlet suffered serious cavitation and erosion damage. The use of polymer...

Proceedings Volume II
Cavitating Flows—Flow Effects on Structures Supercavitating Machinery Fluid Machinery Design
The papers presented in these proceedings represent a variety of disciplines from many countries. This unique jointing of three major societies has created a collection of papers with...

Induced Oscillations of Liquid Jet-Gas Cavity System
This investigation studies the basic liquid jet-gas cavity interaction, accounting for compressibility, frequency and amplitude of jet oscillation, and fall characteristics of the undisturbed...

Final Report of the Task Committee on Branching Conduits
The purposes of investigations on branches are basically to determine energy losses; pressure fluctuations including cavitation; and the relation of hydraulic losses to structural considerations...

Polymerization of Concrete Fights Cavitation
The techniques and materials used for the repair of concrete are many and varied. The repair at Dworshak Dam utilized epoxy resins, dry pack mortar, fibrous concrete and a new technique,...

Steady Stratified Circulation in a Cavity
An attempt is made, by introducing empirically defined, depth-dependent expressions for eddy diffusivity and eddy viscosity into the governing equations for two-dimensional behavior, to...

New Diver-Operated Bedload Sampler
A scuba-diver-operated sampler allows accurate measurement of bedload discharge. The new device is a portable pit-type sampler, which is pushed into the streambed by a diver. The sampler...

Fibrous Concrete Repair of Cavitation Damage
Libby Dam is a high head concrete structure on the Columbia River System. After moderate usage, one of the sluices (low level outlets) developed severe cavitation damage. The concrete...

 

 

 

 

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