Results 1 to 10 of about 9,373,613 (338)
Study on the air leakage characteristics of a goaf in a shallow coal seam and spontaneous combustion prevention and control strategies for residual coal. [PDF]
PLoS ONE, 2022 Air leakage from surface mining-induced fissures can easily cause spontaneous combustion of residual coal in the goaf, which threatens the safe production of the underground working face.
Jianwei Li +3 more
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Numerical Analysis on Pipeline Leakage Characteristics for Incompressible Flow
Journal of Applied Fluid Mechanics, 2019 Systematic Computational Fluid Dynamics (CFD) simulations on incompressible water pipe flow with leakage were conducted in the present study. The aim is to provide the understanding of how different parameters, including the leakage pipe diameter, inlet ...
Z. Zeng, R. Luo
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Leakage Characteristics of Dual-Cannula Fenestrated Tracheostomy Tubes during Positive Pressure Ventilation: A Bench Study [PDF]
Anesthesiology Research and Practice, 2016 This study compared the leakage characteristics of different types of dual-cannula fenestrated tracheostomy tubes during positive pressure ventilation. Fenestrated Portex® Blue Line Ultra®, TRACOE® twist, or Rüsch® Traceofix® tracheostomy tubes equipped ...
Thomas Berlet, Mathias Marchon
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Leakage Characteristics of Proportional Directional Valve
Processes, 2023 This paper deals with the analysis of leakage characteristics of the proportional directional valve. These characteristics distinguish a real directional valve from an ideal one.
M. Ledvoň +4 more
semanticscholar +3 more sources
Machines, 2023 A spring-energized seal, whose PTFE plastic shell has excellent self-lubrication and a low temperature stability, is used widely in liquid fuel valves’ rotating end-face seals.
Dengyu Liu +4 more
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Machines, 2022 In this study, to improve the accuracy of the brush seal heat transfer model, based on the finite volume method (FVM) coupled with the three-dimensional Reynold-averaged Naviers-Stokes equations (RANS) equations of the Local temperature non-equilibrium ...
Jiahao Zhang, Meihong Liu, Neng Peng
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Leakage Characteristics and Experimental Research of Staggered Labyrinth Sealing
LubricantsThe staggered labyrinth seal is widely used in aerospace, transportation, mining, and other fields due to its advantages of adapting to high speed, reliable sealing performance, and low or even frictionless friction between dynamic and static rotors. The
Na Wang +4 more
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EnergiesTo investigate the leakage characteristics of pure hydrogen and hydrogen-blended natural gas in medium- and low-pressure buried pipelines, this study establishes a three-dimensional leakage model based on Computational Fluid Dynamics (CFD).
Jiadong Li, Bingchuan Xie, Liang Gong
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LubricantsInnovating seal structures and optimizing size parameters are effective ways to enhance the leakage characteristics of labyrinth seals (LSs). Inspired by the ecological fishways with high flow resistance on dam sides, a novel bio-inspired staggered ...
Zhentao Yu +4 more
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Sensors, 2021 Leakage detection methods based on the analysis of leakage acoustic signals provide an effective technical approach for detecting small leaks in water supply pipelines.
Yunfei Li +5 more
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