Results 1 to 10 of about 3,374,665 (395)

Ambient noise differential adjoint tomography reveals fluid-bearing rocks near active faults in Los Angeles. [PDF]

open access: yesNat Commun, 2023
Water scarcity is a pressing issue in California. We develop ambient noise differential adjoint tomography that improves the sensitivity to fluid-bearing rocks by canceling bias caused by noise sources. Here we image the shallow S-wave velocity structure
Liu X, Beroza GC, Li H.
europepmc   +2 more sources

Research on control strategy of an active magnetorheological fluid bearing based on improved gray wolf optimization approach

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2023
In order to address the problems of insufficient load capacity and rotor vibration, an active fluid-film bearing lubricated with magnetorheological fluid (MRF) is proposed. First, the geometry of the MRF fluid-film bearing is designed and its intelligent
Lai Peng   +5 more
doaj   +2 more sources

Performance Comparison of Newtonian and Non-Newtonian Fluid on a Heterogeneous Slip/No-Slip Journal Bearing System Based on CFD-FSI Method

open access: yesFluids, 2022
It is a well-known fact that incorporating a slip boundary into the contact surfaces improves bearing performance significantly. Regrettably, no research into the effect of slip on the behavior of journal bearing systems operating with non-Newtonian ...
Mohammad Tauviqirrahman   +6 more
doaj   +2 more sources

Imitating the effects of drilling fluid invasion on the strength behaviors of hydrate-bearing sediments: An experimental study [PDF]

open access: goldFrontiers in Earth Science, 2022
The drilling fluid invasion into hydrate-bearing sediments will change the geomechanical properties of the reservoir and may lead to uncontrolled geological disasters in the worst case.
Jun Pei   +13 more
doaj   +2 more sources

Non-Newtonian lubrication with Rabinowitsch fluid: a theoretical study on rough step slider bearings [PDF]

open access: yesScientific Reports
This study investigates the performance of a step slider bearing lubricated with Rabinowitsch fluid considering a rough bearing surface. The influence of surface roughness is analyzed using Christensen’s theory, while the fluid film pressure is ...
A. Johny   +5 more
doaj   +2 more sources

Bubble Flow Analysis of High Speed Cylindrical Roller Bearing under Fluid-Solid Thermal Coupling [PDF]

open access: goldInternational Journal of Rotating Machinery, 2017
Heat generation model of high speed cylindrical roller bearing is constructed by calculating the local friction in the bearing. Bubble flow calculation model of roller bearing considering fluid-solid thermal coupling is constructed based on two-body ...
Li Cui, Wenxia Wang, Zhang Yanlei
doaj   +2 more sources

Fluid Machine - Bearing Inserts [PDF]

open access: yes, 2014
The present disclosure relates to fluid machines, especially compressors, more especially screw compressors. More particularly the present disclosure describes a fluid machine comprising at least one rotor, the rotor including a rotor drive shaft ...
Kovacevic, A., Udo, N.
openaire   +2 more sources

Multiscale Analysis of Hydrodynamic Step Bearing with Ultra Low Surface Separations [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
The paper presents the multiscale analysis for the hydrodynamic step bearing with ultra low surface clearances where only the physical adsorbed layer is present in the outlet zone and the continuum fluid flow mainly occurs in the inlet zone. This bearing
C. Cao, Y. Zhang
doaj   +1 more source

Electrical Conductivity in Texturally Equilibrated Fluid‐Bearing Forsterite Aggregates at 800°C and 1 GPa: Implications for the High Electrical Conductivity Anomalies in Mantle Wedges

open access: yesJournal of Geophysical Research: Solid Earth, 2021
Aqueous fluids are one of the principal agents of chemical transport in Earth´s interior. The precise determination of fluid fractions is essential to understand bulk physical properties, such as rheology and permeability, and the geophysical state of ...
Yongsheng Huang   +5 more
semanticscholar   +1 more source

A lubrication model for bubbly oil lubrication with interfacial effect and thermal effect using the theory of multiphase mixtures

open access: yesFriction, 2023
Bubbly oil lubrication is a type of lubrication method. However, the lubrication model of the bubbly oil has not been thoroughly considered. This paper aims to investigate the modelling for bubbly oil lubrication considering the interfacial effect and ...
Shaohua Li, Xiaohui Lin, Shuyun Jiang
doaj   +1 more source

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