Experimental analysis of oil flow and drag torque generation in disengaged wet clutches
Scientific Reports, 2023 Fundamental knowledge of the oil flow in a disengaged wet clutch is essential for optimizing the cooling performance and the drag losses. However, no fundamental information on the oil flow and drag torque generation is available for dip-lubricated wet ...
Lukas Pointner-Gabriel +3 more
doaj +2 more sources
A hybrid analytical and data driven framework for optimizing radially grooved wet clutch geometry [PDF]
Scientific ReportsIn wet clutch systems, the drag torque is generated by the relative motion between rotating disks in the presence of the oil film. This study aims to optimize the geometry of radially grooved wet clutches to minimize drag torque.
Mohammad Sadafi +2 more
doaj +2 more sources
Drag and Torque on Locked Screw Propeller
TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, 2014 Few data on drag and torque on locked propeller towed in water are available in literature. Those data refer to propellers of specific geometry (number of blades, blade area, pitch and skew of blades). The estimation of drag and torque of an arbitrary propeller considered in analysis of ship resistance or propulsion is laborious.
Tomasz Tabaczek, T. Bugalski
openaire +2 more sources
A comparative study on the effect of disks geometrical features on the drag torque of a wet friction clutch [PDF]
MATEC Web of Conferences, 2020 In recent years, the need for highly efficient automatic and semiautomatic powertrains has led to the wide use of wet friction clutches as power transmission systems.
Rogkas Nikolaos +6 more
doaj +2 more sources
Torque and Drag Forces Problems in Highly Deviated Oil Well
Iraqi Journal of Chemical and Petroleum Engineering, 2018 Excessive torque and drag can be critical limitation during drilling highly deviated oil wells. Using the modeling is regarded as an invaluable process to assist in well planning and to predict and prevent drilling problems.
Hasan Ali Neamah +1 more
doaj +3 more sources
Novel Torque and Drag Model for Drilling Two-Dimensional High-Angle Wells
ACS Omega, 2022 Planning high-angle wells involves diverse areas; one of the most important of these areas is torque and drag (T&D) management. Not only could uncontrolled T&D cause various drilling problems like drill string (D/S) failures, casing wear, stuck pipes, and slow rates of penetration but it could also entirely stop the drilling progress, if torque and/or ...
Muhammad Nour +3 more
openaire +4 more sources
Investigation of a staggered dual-rotor wound field synchronous motor for offshore wind turbine full-scale testing platforms [PDF]
Scientific ReportsThe development of high-fidelity testing platforms for offshore wind turbines necessitates drag motors capable of emulating complex marine operating conditions while maintaining ultralow torque ripple.
Yang Xue +5 more
doaj +2 more sources
Spin-transfer mechanism for magnon-drag thermopower [PDF]
, 2011 We point out a relation between the dissipative spin-transfer-torque parameter $\beta$ and the contribution of magnon drag to the thermoelectric power in conducting ferromagnets.
Duine, R. A. +3 more
core +17 more sources
Effect of rough wall on drag, lift, and torque on an ellipsoidal particle in a linear shear flow [PDF]
The Physics of Fluids, 2022 The present study provides a detailed description of the forces on an ellipsoidal particle in the vicinity of the rough wall. Three-dimensional numerical simulations are performed using body-fitted mesh to estimate the drag, lift, and torque coefficients.
A. Bhagat, P. Goswami
semanticscholar +1 more source
Point-particle drag, lift, and torque closure models using machine learning: Hierarchical approach and interpretability [PDF]
Physical Review Fluids, 2022 Developing deterministic neighborhood-informed point-particle closure models using machine learning has garnered interest in recent times from dispersed multiphase flow community.
B. Siddani, S. Balachandar
semanticscholar +1 more source