Results 11 to 20 of about 341,327 (174)
The Use of Gas Dynamics to Estimate the Influence of Flanges on Gear Windage Power Loss
DynamicsThis study aims to develop a new model for windage losses, building upon existing formulation, complemented by dedicated experimental campaigns and a specific methodology designed to isolate and quantify windage losses.
Thibaut Torres +4 more
doaj +2 more sources
Windage Loss Characteristics of Aviation Spiral Bevel Gear and Windage Reduction Mechanism of Shroud
Machines, 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 +1 more source
SN 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 +1 more source
International 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 +1 more source
Application of an unstructured overset method for predicting the gear windage power losses [PDF]
Engineering Applications of Computational Fluid Mechanics, 2021 Enhancing the efficiency of gear systems is of significance to reduce fuel consumption and overall weight. Windage power losses become prevailing in high-speed gear systems, such as aero-engine applications. To avoid the shortages and limitations of commonly used methods (e.g.
Y. Dai, L. Xu, X. Zhu, B. Ouyang
openaire +2 more sources
Applied 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 +1 more source
Blade Drag Resistance in Windage Operating of Low Pressure Steam Turbines
Fluids, 2022 On the basis of previous experimental and numerical studies, the windage operation of low-pressure turbine rear stage is investigated. The state of the steam within the rotor channel was correlated to measurements carried out downstream of the blades for
Antonio Mambro +3 more
doaj +1 more source
Applied Sciences, 2020 The existing research problem is that the hypergraph-based method does not comprehensively consider the power loss factors of the mechanical transmission system, especially the existing windage power loss.
Yun Wang +4 more
doaj +1 more source
Numerical thermal analysis of synchronous reluctance generator for wind energy application
Energy Conversion and Economics, Volume 4, Issue 5, Page 317-333, October 2023., 2023 Abstract This paper focuses on the thermal analysis of the synchronous reluctance generator with a rating of 2.1 kW. It mainly uses explicit, and implicit finite difference methods for thermal analysis to reduce the complexity of thermal calculation for the machine's components.
Tefera Kitaba Tolesa +2 more
wiley +1 more source
Rip Currents Off Rocky‐Shore Surge Channels
Journal of Geophysical Research: Oceans, Volume 128, Issue 8, August 2023., 2023 Abstract More than half the world's coastlines are rocky, but rip‐current dynamics on these topographically complex shores have not been studied. Field experiments on a typical rocky shore using video, drifters, and in‐situ current meters and pressure sensors reveal that incoming narrow‐banded swells result in incident wave groups that force breakpoint
Jamie MacMahan +4 more
wiley +1 more source