Results 11 to 20 of about 13,714 (263)

Development of equipment for welding pipes made of fluoroplast-4D [PDF]

open access: yesОмский научный вестник, 2018
The description of the installation developed for overlap welding of tube shells of fluoroplast-4D used in the equipment of chemical and petrochemical industries is presented.
V. A. Sokolov   +2 more
doaj   +1 more source

PIV Measurement and Proper Orthogonal Decomposition Analysis of Annular Gap Flow of a Hydraulic Machine

open access: yesMachines, 2022
The fluid stress or flow-induced vibration of annular gap flow always has some influence on the stable working conditions of a hydraulic machine. A time-averaged analysis of flow may not have to explicitly acknowledge these factors. Accordingly, a finite-
Yiming Zhao, Yongye Li, Xiaoteng Song
doaj   +1 more source

Flow Field and Pressure Loss Characteristics at Rotary Drillstring Joints

open access: yesGeofluids, 2023
A thorough understanding and accurate calculation of the annulus pressure losses are paramount to drilling design and construction. However, due to the influence of the drillstring rotation and the abrupt dimensional variation at the joint, it is ...
Minghu Nie   +5 more
doaj   +1 more source

Thermal performance analysis of a thermocline storage tank with integrated annular distributors

open access: yesFrontiers in Energy Research, 2023
The implementation of single-tank thermocline storage systems in concentrating solar power systems is a promising solution to improve their stability and continuity.
Chen Junli   +4 more
doaj   +1 more source

Experimental Study of Penetration Capability of an Annular-Shaped Charge under Multipoint Synchronous Initiation

open access: yesShock and Vibration, 2023
The large-distance penetration capability of an annular-shaped charge under multipoint synchronous initiation was experimentally investigated. For different annular charge structures and different multipoint initiation settings, incident angle, collision
Liu Jie   +4 more
doaj   +1 more source

Influence of the pitch-to-diameter ratio on the circumferential non-uniformity of annular fuel outer temperature distribution

open access: yesHe jishu, 2023
BackgroundThe annular fuel has a closely arranged structure, and the coolant flow at both the gap between the stringers and the near wall surface is small, which is unfavorable to the coolant mixing between the subchannels and the uniform circumferential
ZENG Fulin   +3 more
doaj   +1 more source

Gap Analysis of Annular Groove MR Brake [PDF]

open access: yesProceedings of the 5th International Conference on Civil Engineering and Transportation 2015, 2015
This paper provides an annular groove Magnetorheological(MR) brake. Bingham model is used to describe the constitutive behavior of MR fluids subject to an applied magnetic field. The theoretical analysis of the shear flow and braking torque of MR fluid between two parallel annular disks in annular groove MR brake is presented.
Yi Zhou, Zhen Qiao, Jin Huang
openaire   +1 more source

Dynamics of pressure pulsations in thin annular gap

open access: yesIOP Conference Series: Earth and Environmental Science, 2021
Abstract Fluid pulsations can significantly influence behavior of bearings or sealing parts of hydraulic machines and therefore their operation. In this contribution, an analytical approach to solve pressure pulsations dynamics is compared with a computational solution using acoustic simulation in ANSYS Mechanical FEM package.
Kůrečka, Jan   +2 more
openaire   +2 more sources

Flow Mode Magnetorheological Dampers with an Eccentric Gap

open access: yesAdvances in Mechanical Engineering, 2014
This paper analyzes flow mode magnetorheological (MR) dampers with an eccentric annular gap (i.e., a nonuniform annular gap). To this end, an MR damper analysis for an eccentric annular gap is constructed based on approximating the eccentric annular gap ...
Young-Tai Choi, Norman M. Wereley
doaj   +1 more source

Static Force Characteristic of Annular Gaps – Experimental and Simulation Results

open access: yesJournal of Tribology, 2022
AbstractWe discuss the static characteristics, i.e., the induced force on the rotor, the attitude angle and the pressure difference, of off-centered annular gaps with an axial flow component without cavitation. The paper focuses on turbulent flow inside the annulus.
Kuhr, Maximilian M. G.   +2 more
openaire   +2 more sources

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