Results 21 to 30 of about 595,906 (266)
Mechanism and Experimental Study on Electrostatic Atomization Using Needle-Shaped Electrodes
Lubricants, 2023 The conventional pneumatic Minimum Quantity Lubrication (MQL), when not properly designed, may have poor atomization and insufficient wetting performance, resulting in higher oil mist concentration and poor film formation ability in the cutting zone. The
Hao Ma, Min Yang
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A Review of Cooling and Lubrication Techniques for Machining Difficult-to-cut Material [PDF]
Journal of Engineering Research - Egypt, 2023 Superalloys have magnificent properties which make them widely applied in various industrial fields. They possess high mechanical properties such as high strength, high rupture resistance, and high resistance to corrosion and oxidation.
Mayar Ashmawy +2 more
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International Journal of Aerospace Engineering, 2022 The VOF (volume of fluid) multiphase transient simulation model of the windage loss of the gear pair under oil-jet lubrication was carried out by using the dynamic mesh technology with the powerful parallel computing capabilities of the Super Cloud ...
Linlin Li +5 more
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Identification and source attribution of organic compounds in ultrafine particles near Frankfurt International Airport [PDF]
Atmospheric Chemistry and Physics, 2021 Analysing the composition of ambient ultrafine particles (UFPs) is a challenging task due to the low mass and chemical complexity of small particles, yet it is a prerequisite for the identification of particle sources and the assessment of potential ...
F. Ungeheuer +2 more
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Breakup of diminutive Rayleigh jets [PDF]
, 2010 Discharging a liquid from a nozzle at sufficient large velocity leads to a continuous jet that due to capillary forces breaks up into droplets. Here we investigate the formation of microdroplets from the breakup of micron-sized jets with ultra high-speed
Detlef Lohse +7 more
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Oil-Jet Lubrication of Epicyclic Gear Trains
, 2023 Predicting and understanding the evolving oil distribution is the major key for the design of efficient and reliable cooling and lubrication systems in gear boxes. The complexity of multiple rotating and moving parts and the bad accessibility necessitate costly and complicated experimental approaches.
Haber, Matthias +2 more
openaire +2 more sources
Flow in a double-film-fed fluid bead between contra-rotating rolls, Part 1: equilibrium flow structure [PDF]
, 2001 In multiple-roll coaters thin liquid films are transferred from roll to roll by means of liquid ‘beads’ which occupy the small gaps between adjacent rolls.
Gaskell, P.H. +2 more
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Nucleation of jet engine oil vapours is a large source of aviation-related ultrafine particles
Communications Earth & Environment, 2022 Jet engine lubrication oil is an efficient nucleation agent that likely contributes to high levels of ultrafine particles near airports contributing to poor air quality, suggest laboratory thermodenuder experiments and observations near Frankfurt ...
Florian Ungeheuer +10 more
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Numerical Analysis for Wetting Behaviors of an Oil Jet Lubricated Spur Gear
Lubricants, 2022 As it is widely employed in the aeronautical transmission system, a better understanding of the oil jet lubrication behavior is vital to determine the total system energy consumption.
Yu Dai +3 more
doaj +1 more source
Performance of a New Aeronautic Oil-Guiding Splash Lubrication System
Lubricants, 2022 Among ever-increasing demands for low power consumption, low weight, and compact reducer systems, an oil-guiding splash lubrication method integrating the oil-guiding cylinder and pipes is suggested to be more suitable for light helicopters, instead of ...
Yu Dai +4 more
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