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Windage Loss Characteristics of Aviation Spiral Bevel Gear and Windage Reduction Mechanism of Shroud

open access: yesMachines, 2022
With the increasing speed of aviation gear, windage loss has been the main component of power loss. Reducing windage is of great significance to improving the transmission efficiency of aviation spiral bevel gear.
Linlin Li   +3 more
doaj   +3 more sources

A New Windage Loss Model for S-CO2 Turbomachinery Design

open access: yesApplied Sciences, 2023
A supercritical CO2 (S-CO2) Brayton cycle is a compact and simple power conversion system with competitive efficiency. However, the strong real gas effects of S-CO2 pose challenges to the design of a cycle and its components.
Dokyu Kim   +3 more
doaj   +3 more sources

Influence of rotor slot profile on the windage loss in a Switched Reluctance Motor for an electric autorickshaw

open access: yesEngineering Science and Technology, an International Journal, 2023
A Switched Reluctance Motor is designed for an electric auto rickshaw operating at 25 kmph. Different stator-rotor teeth combinations are worked out and the suitable combination for the application is chosen.
Arjun Seshadri   +1 more
doaj   +2 more sources

A computational fluid dynamic-based method for analyzing the nonlinear relationship between windage loss and pressure in a geotechnical centrifuge

open access: yesSN Applied Sciences, 2021
Temperature control is an important limitation to further increase in geotechnical centrifuge power. Although vacuum pumps can reduce windage loss, they also negatively affect heat transfer performance.
Yi-Nan Guo   +4 more
doaj   +3 more sources

Assessing the Meshing for Windage Power Loss Simulations of an Orthogonal Face Gear

open access: yesMachines
In the current energy landscape, efficiency is a critical topic. Therefore, even in the case of geared transmissions, it is essential to predict and calculate power losses as accurately as possible from the design phase. There are mainly three categories
Tiberiu-Daniel Pau   +3 more
doaj   +3 more sources

Action mechanism of axial flow on windage loss in open shaft‐type gap with CO2

open access: yesEnergy Science & Engineering, 2023
The windage loss in rotor‐stator gap has an important effect on rotating machinery, especially with higher rotational speed and fluid density. However, the mechanism of axial flow on windage loss in open shaft‐type gap is hardly studied in most ...
Lehao Hu   +4 more
doaj   +2 more sources

Numerical Calculation Analysis and Characteristic Research on Windage Loss of Oil-Jet Lubricated Aviation Gear Pair

open access: yesInternational Journal of Aerospace Engineering, 2022
The VOF (volume of fluid) multiphase transient simulation model of the windage loss of the gear pair under oil-jet lubrication was carried out by using the dynamic mesh technology with the powerful parallel computing capabilities of the Super Cloud ...
Linlin Li   +5 more
doaj   +2 more sources

Impact of stator slot geometry on the windage loss in a high‐speed linear switched reluctance motor

open access: yesIET Electric Power Applications, 2022
A linear switched reluctance motor (LSRM) is designed for electric propulsion application in a Magnetically Levitated (Maglev) train with the base speed of 7.6 m/s and operating at a maximum of 27.8 m/s.
Arjun Seshadri   +3 more
doaj   +2 more sources

Effects of Surface Roughness on Windage Loss and Flow Characteristics in Shaft-Type Gap with Critical CO2

open access: yesApplied Sciences, 2022
To investigate the effects of surface roughness on windage loss and flow characteristics in a shaft-type gap, the skin friction coefficient (Cf) and flow versus Reynolds number (Re) at different surface roughness (Ra) and radius ratio (η) values were ...
Lehao Hu   +4 more
doaj   +2 more sources

Numerical Simulation on Windage Power Loss of High-Speed Spur Gear with Baffles

open access: yesMachines, 2022
Windage power loss (WPL) is significant and cannot be neglected in a study on transmission efficiency and reducing the energy consumption of high-speed gear. The influence mechanism of the baffle on the reduction of WPL needs to be further studied. Based
Yuzhe Zhang   +3 more
doaj   +2 more sources

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