Results 11 to 20 of about 556,138 (304)
International Journal of Multiphase Flow, 2018 Accurate direct numerical simulations are performed to determine the drag, lift and torque coefficients of non-spherical particles. The numerical simulations are performed using the lattice Boltzmann method with multi-relaxation time.
S. Sanjeevi +2 more
semanticscholar +3 more sources
Variation of drag, lift and torque in a suspension of ellipsoidal particles
Powder Technology, 2018 Previous research has mostly been focused on the drag force in fluid-particle assemblies. However, when the particle geometry is non-spherical, secondary forces and torque may no longer be negligible.
Longting He, D. Tafti
semanticscholar +3 more sources
Method of suspender line trajectory design
Petroleum Exploration and Development, 2021 Based on the mechanical model of an elastic rod, a new trajectory design method was established. The advantages of the suspender line trajectory in reducing drag and torsion were compared, and the main controlling factors of drag and torque and their ...
Fan YU +5 more
doaj +1 more source
Assessment of Effect of Test Parameters on Drag Torque Characteristics for Wet Clutch Design [PDF]
한국정밀공학회지, 2019 As environmental and energy issues increase, energy efficiency is of great significance in the automobile industries. Drag torque of a wet clutch in an automatic transmission system is one of the causes of energy loss.
Hansol Kim, Koo-Hyun Chung
doaj +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
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.
Atul Bhagat, P. Goswami
semanticscholar +1 more source
Machines, 2023 Wet friction clutch is the key functional component of the high-speed helicopter variable-speed transmission system, which is used to change the power transmission path.
Wuzhong Tan +3 more
doaj +1 more source
Mechanical Analysis of DS in Horizontal Directional Drilling
Applied Sciences, 2022 In recent years, trenchless horizontal directional drilling (HDD) technology has developed rapidly towards the direction of large pipe diameter and long span. During construction, the buckling deformation and large drag torque of the drillstring (DS) are
Hua Tong, Yongbo Shao
doaj +1 more source
Lubricants, 2023 Gas foil thrust bearings (GFTBs) have been successfully used to support the axial load of oil-free microturbomachinery with low drag friction due to the low viscosity of gas or air used as a bearing lubricant.
Sung Ho Hwang +2 more
doaj +1 more source
Tribology International, 2020 The remaining torque of disengaged wet clutches is a major source of energy loss and, therefore, an objective of current research. The present contribution describes the necessary simplifications to obtain an analytical solution of the governing ...
R. Leister +4 more
semanticscholar +1 more source