Results 21 to 30 of about 44,109 (294)

Numerical study of seabed response and liquefaction around a jacket support offshore wind turbine foundation under combined wave and current loading

open access: yesWater 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
doaj   +1 more source

Numerical characterization of under-expanded cryogenic hydrogen gas jets

open access: yesAIP 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
doaj   +1 more source

Thermal Efficiency and Economics of a Boil-Off Hydrogen Re-Liquefaction System Considering the Energy Efficiency Design Index for Liquid Hydrogen Carriers

open access: yesEnergies, 2021
This study analyzes the thermodynamic, economic, and regulatory aspects of boil-off hydrogen (BOH) in liquid hydrogen (LH2) carriers that can be re-liquefied using a proposed re-liquefaction system or used as fuel in a fuel cell stack.
Minsoo Choi   +4 more
doaj   +1 more source

Breaching and liquefaction in subaqueous retrogressive flow slides

open access: yesCanadian 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
openaire   +3 more sources

Engineering geologic assessment of the slope movements and liquefaction failures of the 23 October 2011 Van earthquake (Mw= 7.2) [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2013
On 23 October 2011, a Mw = 7.2 earthquake occurred in the Van Province in eastern Turkey, killing 604 people. The earthquake was triggered by a thrust fault due to a compression stress in the region, and caused extensive damage over a large area.
A. Karakaş, Ö. Coruk, B. Doğan
doaj   +1 more source

Computational and experimental investigation of biofilm disruption dynamics induced by high-velocity gas jet impingement [PDF]

open access: yes, 2020
Peer ReviewedPostprint (published ...
Dorado Castaño, Antonio David   +5 more
core   +2 more sources

Plasticity, Flow Liquefaction, and Cyclic Mobility in Liquefiable Soils with Low to Moderate Plasticity

open access: yesCivilEng
Over the past several decades, extensive research has advanced the understanding of liquefaction in clean sands and sand–silt mixtures under seismic loading.
Carmine P. Polito, James R. Martin
doaj   +1 more source

Influence of unsuitable operational conditions on the transient performance of a small hydrogen liquefier [PDF]

open access: yesHydrogen, Fuel Cell & Energy Storage, 2017
Joule-Thomson cooling systems are used in refrigeration processes such as cryogenic gas liquefaction. Although extensive studies have been carried out by researchers, most of them include cryogenic heat exchangers and their associated fields.
Ali Saberimoghaddam   +1 more
doaj   +1 more source

Development of a flowing-solvent liquefaction apparatus

open access: yesFuel Processing Technology, 1990
Abstract A novel, short contact time liquefaction reactor has been developed which combines the advantages of direct, electrical resistance heating of the reactor tube with a constant flow of liquefaction solvent through a fixed bed of coal to remove products from the heated zone. Preliminary results are presented to show the effect of pressure, peak
J.R. Gibbins, R. Kandiyoti
openaire   +1 more source

Shaping of Biohybrid Functional Living Materials

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates a strategy for shaping living mycelium into functional materials by directing its natural growth. Nanoparticles armor hyphae, micron‐scale particles entangle within the network, and printed hydrogel architectures steer expansion, creating defined geometries.
Sarah Schyck   +3 more
wiley   +1 more source

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