Results 271 to 280 of about 23,904 (309)

Confined high pressure discharge experiments

IEEE Transactions on Magnetics, 1989
Plasma jets created by a discharge of current density in the range of 20-200 kA/cm/sup 2/ were studied experimentally. Time-of-flight, spectroscopy, and X-ray imaging techniques were used to measure the velocity, temperature and the density of the plasma jet. These techniques were applied to the plasma of a free jet both in air and in vacuum, resulting
N. Spector, Z. Kaplan, A. Loeb, B. Brill, J. Levinson   +4 more
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Effect of Isotropic Confining Pressure on Hydrostatic Pressure of Water in Unsaturated Soil

Science, 1962
A theory has been developed for the response of the pore-water pressure u w to pressure applied isotropically to unsaturated soil. The results indicate that the response is determined by two shrinkage characteristics of the soil.
P R, Day, W M, Forsythe
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Pressure fluctuations in an unstable confined jet

AIAA Journal, 1996
This note reports on a study of pressure fluctuations at the exit of a two-dimensional jet confined in a rectangular cavity.
Patricia Ern, Jose Eduardo Wesfreid
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Confining Pressure, Grain Angularity, and Liquefaction

Journal of Geotechnical Engineering, 1985
Substantial decrease in resistance to liquefaction is shown to occur with increase in confining pressure for a rounded and an angular sand having identical gradation. For a given increase in confining pressure, angular sand suffers a larger loss in resistance than rounded sand.
Yoginder P. Vaid, Jing C. Chern, Hadi Tumi   +2 more
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Prediction of explosion pressures in confined spaces

Journal of Loss Prevention in the Process Industries, 1996
This paper outlines the basic features of a numerical explosion model that has been developed for predicting explosion pressures and flame speeds in confined geometries. The results and lessons learnt from the validation of the model against experimental data are presented, together with a discussion of the limitations of the model and areas where ...
D.K. Pritchard, D.J. Freeman, P.W. Guilbert   +2 more
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Effect of pore pressure and confining pressure on fracture permeability

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1981
Abstract The effective pressure p e for measurements of fluid permeability 〈 k 〉 is shown to be ( p c − sp p ) where p c is confining pressure, p p is pore pressure, and s depends on the topography of the fracture surfaces and rock type.
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The pressure exerted by a confined ideal gas

Journal of Physics A: Mathematical and Theoretical, 2011
In this paper, we study the pressure exerted by a confined ideal gas on the container boundary and we introduce a surface force in gases. First, the general expression for the local surface pressure tensor is obtained. We find, by examples, that the pressure vanishes at the edges of a box, peaks at the middle of the surface and its magnitude for ...
Hai Pang, Wu-Sheng Dai, Mi Xie
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Confined fluids and their role in pressure solution

Chemical Geology, 2006
Abstract The process of pressure solution is defined as the dissolution of materials under high stress at grain-to-grain contacts and precipitation at interfaces under low stress. The kinetics of this process are still poorly understood mainly because of the large timescales involved. In this research, the Surface Forces Apparatus (SFA) technique was
Alessandro Anzalone, James Boles, George Greene, Kevin Young, Jacob Israelachvili, Norma Alcantar   +5 more
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Lateral Pressures in a Confined Porous Medium

Journal of Engineering Mechanics, 1984
M. Y. Corapcioglu, et al. has obtained expressions for deformations and stresses due to a single surface line load in a fluid saturated porous medium of finite width. The problem has a practical importance, especially in the case of elevated, unpaved roads which are supported by retaining walls on both sides. In a subsequent paper by Corapcioglu and A.
M. Yavuz Corapcioglu, Osman Borekci
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Pressure Distribution in Confined Jet Flow

Journal of Fluids Engineering, 2014
A momentum jet injected into a confined container breaks up to “diffusive turbulence” after traveling a critical distance. It has been argued that an adverse pressure gradient developing within the container, acting against the jet momentum flux, is responsible for this break up (Risso and Fabre, 1997,“Diffusive Turbulence in a Confined Jet Experiment,”
D. Liberzon, H. J. S. Fernando
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