Results 21 to 30 of about 44,508 (305)
The importance of accurate time-integration in the numerical modelling of P-wave propagation [PDF]
, 2017 The numerical dissipation characteristics of the Newmark and generalised-α time-integration schemes are investigated for P-wave propagation in a fully saturated level-ground sand deposit, where higher frequencies than those for S-waves are of concern ...
Kontoe, S +3 more
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Numerical Simulation as Laboratory Liquefaction Test Comparison for Geological Hazard Countermeasure: A Preliminary Study [PDF]
BIO Web of ConferencesLiquefaction is a secondary hazard due to earthquakes, which is one of the geological hazards. The impairment caused can damage infrastructure on a wide scale and even cause casualties. Several phenomenal liquefaction events have been recorded throughout
Jaya Syahbana Arifan +3 more
doaj +1 more source
Breaching and liquefaction in subaqueous retrogressive flow slides
Canadian Geotechnical Journal, 2023 Although retrogressive flow slides in subaqueous sandy slopes can be very large and cause substantial damage, the failure mechanisms of such slides are not very clear yet. This study analyses two well-monitored flow slides in a shoal margin in the Western Scheldt estuary in the Netherlands: a natural flow slide that eroded 300 m into the edge of the ...
Geeralt A. van den Ham +3 more
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A Multicenter, Prospective, Randomized, Contralateral Study of Tissue Liquefaction Liposuction vs Suction-Assisted Liposuction [PDF]
, 2018 Tissue liquefaction liposuction (TLL) deploys a novel energy source utilizing a stream of warmed, low-pressurized, and pulsed saline to extract fat tissue.
Andrew, Mark S. +7 more
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Flow Potential of Sand During Liquefaction
Soils and Foundations, 1998 In order to quantify the tendency to flow characteristics of sandy soils, the maximum value of excess pore water pressure ratio developed during undrained monotonic loading test was taken as an index property and defined as flow potential. Triaxial compression tests, triaxial extension tests and simple shear tests on Toyoura sand were conducted by ...
Mitsutoshi Yoshimine, Kenji Ishihara
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Water Science and Engineering, 2022 The seabed instability induced by the transient liquefaction when exposed to wave-current may threaten the safety of offshore structures. In this study, the Reynolds-averaged Navier–Stokes (RANS) equations with the k–ε turbulence model were used to ...
Shu-xin Wei +4 more
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Unified analysis of liquefaction and the ground flow phenomenon [PDF]
International Applied Mechanics, 2007 Loose saturated sand behaves as a solid before liquefaction but as a fluid when the excess pore water pressure equals the initial confining stress, after which it recovers its strength. A simple constitutive equation for loose saturated sand was developed to express the phase transformation between a solid and fluid during liquefaction and the ground ...
Tae-Hoon Kim, Yong-Seong Kim
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Calculating the state parameter in crushable sands [PDF]
, 2019 The state parameter (y) measures the distance from the current state to the critical state line (CSL) in the compression plane. The existence of a correlation between both the peak angle of shearing resistance ( # $ ) and peak dilatancy and y is central ...
Ciantia, Matteo, O'Sullivan, Catherine
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Numerical characterization of under-expanded cryogenic hydrogen gas jets
AIP Advances, 2020 High-resolution direct numerical simulations are conducted for under-expanded cryogenic hydrogen gas jets to characterize the nearfield flow physics. The basic flow features and jet dynamics are analyzed in detail, revealing the existence of four stages ...
Zhaoxin Ren, Jennifer X. Wen
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Strategic Eurasian Natural Gas Model for Energy Security [PDF]
, 2011 The mathematical formulation of a large-scale equilibrium natural gas simulation model is presented. Although large-scale natural gas models have been developed and used for energy security and policy analysis quite extensively (e.g., Holz (2007), Egging
Chyong, Chi Kong, Hobbs, Benjamin F.
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