Results 211 to 220 of about 2,701 (247)
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Momentum and Mass Transfer in a Submerged Water Jet
Journal of Applied Mechanics, 1955Abstract For a round water jet issuing into stationary water, momentum and material diffusion were measured, the latter by means of a sodium chloride tracer technique. It was found that (a) the behavior of the water jet was the same as that found by others for an air jet issuing into air, and hence constants obtained from measurements in
Walton Forstall, E. W. Gaylord
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Analysis of submerged water jets by visualization method
Journal of Visualization, 2004This paper is concerned with an experimental investigation on plane submerged water jets discharged into quiescent water in an open channel. Flows are visualized by using hydrogen bubbles, solid particles and dye. The results show that the jets attaching to the water surface by the Coanda effect are classified into six types according to their behavior
Nobukazu Shimada +4 more
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Submerged Abrasive Water Jet Piercing/Drilling: Preliminary Tests
2020In the technological process of cutting by means of an abrasive water jet, the so-called piercing is often used when starting the operation of cutting. As the piercing is a time-important part of the process, it is advantageous to reduce the time by using different piercing strategies.
Jiri Klich, Dagmar Klichova, Guoyi Peng
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Noise from Cavitating Submerged Water Jets
The Journal of the Acoustical Society of America, 1961Frequency spectra of the underwater noise produced by cavitating submerged water jets were determined experimentally for nozzle diameters from 38 to 112 in., efflux velocities from 40 to 175 ft/sec, and ambient pressures up to 2 atm. When cavitation is barely incipient, the rms sound pressure varies with differences in the manner of handling the water ...
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Spectral peculiarities of turbulent pulsations of submerged water jets
Technical Physics Letters, 2016The spectra of turbulent jet temperature pulsations at 1–40 Hz frequencies have been experimentally studied based on high-speed thermography of the water boundary layer: the region where an impact jet interacts with a surface transparent to IR radiation, as well as the near-wall region where two submerged jets interact in a disc-shaped tee-joint.
I. A. Znamenskaya +3 more
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The Penetration of Submerged Round Turbulent Gas Jets in Water
ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting: Volume 1, Symposia – Parts A, B, and C, 2010Direct measurements of the interfacial behavior of submerged high speed gas jets with speeds ranging from subsonic to supersonic Mach numbers were performed using high speed digital photography and shadowgraphs. The results indicate that the jets preferentially pinch-off near the axial position which in previous experimental work has been shown to ...
Chris Weiland, Pavlos Vlachos
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Experimental Study of Submerged Water Jet Flow with PIV
2011 Asia-Pacific Power and Energy Engineering Conference, 2011Based on technical requirements of PIV (Particle Image Velocimetry) system, experiment setup of submerged water jet flow was founded and dynamic characteristics of it were studied. The experiments proved the feasibility of advanced PIV technology for dynamic characteristics and velocity structure research.
Yazhu Zhang +4 more
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Water Waves Radiated by Coherent Vortices in a Submerged Jet
Journal of Ship Research, 1993The physical problem - We consider a jet of water discharging from a nozzle submerged at a depth D below the free surface of a large body of water at rest, as in the experimental study of Bernal and Madnia (1989). The free surface is taken as the plane Z = 0 and the Z-axis points upward.
Francis Noblesse +2 more
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Flow Visualization of Submerged Steam Jet in Subcooled Water
Journal of Heat Transfer, 2016Steam discharged into subcooled water is investigated experimentally to demonstrate the direct contact condensation phenomena in nuclear reactor safety system and underwater propulsion apparatus. The steam jet condenses to various shapes at different thermal hydraulic conditions.
Fang Yuan +3 more
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Effect of Jet Characteristics on Heat Transfer by Impingement of Submerged-Confined Water Jet
Heat Transfer: Volume 1 — Heat Transfer in Flowing Systems, 1998Abstract Single phase forced convection and subcooled flow boiling due to impingement of confined submerged, fully turbulent liquid jet are experimentally investigated at atmospheric pressure. Heat transfer measurements are made along a uniformly heated surface onto which a jet is impinged orthogonal or at angles of inclination upstream ...
H. Z. Abou-Ziyan +3 more
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