Results 11 to 20 of about 91,774 (266)

Oil repartition in a foam film architecture [PDF]

open access: yesSoft Matter, 2014
The propagation and distribution of oil inside the aqueous network of a foam is investigated in the case where oil can invade the foam without breaking it.
Piroird, Keyvan   +2 more
openaire   +3 more sources

Electrowetting-Induced Oil Film Entrapment and Instability [PDF]

open access: yesPhysical Review Letters, 2006
We investigate the spreading at variable rate of a water drop on a smooth hydrophobic substrate in an ambient oil bath driven by electrowetting. We find that a thin film of oil is entrapped under the drop. Its thickness is described by an extension of the Landau-Levich law of dip coating that includes the electrostatic pressure contribution.
Staicu, A.D., Mugele, Friedrich Gunther
openaire   +3 more sources

Modeling and Characteristic Analysis of a Cylinder Block/Valve Plate Interface Oil Film Model for 35 MPa Aviation Piston Pumps

open access: yesMachines, 2022
Oil film characteristics are critical to the high-reliability operation of high-pressure aviation piston pumps (APPs). However, there is still a lack of research on oil film modeling and characteristic analysis of high-pressure APPs. This paper takes the
Tianzhao Wang   +7 more
doaj   +1 more source

Study of Flow between Non-Isothermal Disks in Hydro-Viscous Drive

open access: yesTribology Online, 2018
The film flow between the disks is the critical factor in the design of hydro-viscous drive. In the previous work dealing with the flow in the gap, few authors considered the effect of non-isothermal interface on the flow.
Jianzhong Cui
doaj   +1 more source

Effect of Soccer Ball Panels on Aerodynamic Characteristics and Flow in Drag Crisis

open access: yesApplied Sciences, 2020
The panel patterns of soccer balls that change with each World Cup have a significant impact on the balls’ aerodynamic and flight characteristics. In this study, the aerodynamic forces of eleven types of soccer ball with different panel patterns were ...
Yuki Sakamoto   +2 more
doaj   +1 more source

Study on Lubrication Performance of Journal Bearing with Multiple Texture Distributions

open access: yesApplied Sciences, 2018
The lubrication performance of journal bearings with different sorts of uniformly distributed micro-spherical textures are studied in this paper. Geometries and dynamic models of journal bearings with pure concave/convex textures are developed.
Jun Wang   +3 more
doaj   +1 more source

Morphology Characterization of Micro-clearance Oil Film of Hydrostatic Bearing Under Extreme Conditions

open access: yes工程科学与技术, 2022
Under extreme working conditions, the lubricating oil film in the clearance of hydrostatic bearing is subjected to the combined action of strong extrusion pressure and strong shear force.
Xiaodong YU   +6 more
doaj  

Material Removal Model for Lapping Process Based on Spiral Groove Density

open access: yesApplied Sciences, 2021
The increasing demand for single-crystal wafers combined with the increase in diameter of semiconductor wafers has warranted further improvements in thickness variation and material removal rate during lapping to ensure price competitiveness of wafers ...
Taekyung Lee   +5 more
doaj   +1 more source

Experimental Evaluation of Lubrication Characteristics of a New Type Oil-Film Bearing Oil Using Multi-Sensor System

open access: yesApplied Sciences, 2016
In order to evaluate the operating performance of a new type oil-film bearing oil S220, a new test bearing was designed based on oil-film bearing test rig. The operating temperature of S220 was tested through the thermocouples installed on a test bearing;
Jianmei Wang   +4 more
doaj   +1 more source

Diffusion of Oil Films over Insects [PDF]

open access: yesNature, 1962
CONTACT insecticides are often formulated as solutions in oil and presented as deposits sprayed on to surfaces. The spread of oil on to insects walking over superficial films is an essential process in the action of such a deposit, though the quantities of oil involved are extremely small.
openaire   +2 more sources

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