Results 11 to 20 of about 4,058 (217)
Windage measurements in a rotor stator cavity with rotor mounted protrusions and bolts [PDF]
, 2012 This paper reports an experimental investigation of the windage associated with enclosed rotor-stator systems with superposed throughflow, as commonly found in gas turbine engines.
Coren, Daniel +2 more
core +1 more source
Clustering analysis of the Sargassum transport process: application to beaching prediction in the Lesser Antilles [PDF]
Ocean Science, 2022 The massive Sargassum algae beachings observed over the past decade are a new natural hazard currently impacting the island states of the Caribbean region (human health, environmental damages, and economic losses).
D. Bernard +4 more
doaj +1 more source
Modelling windage power loss from an enclosed spur gear [PDF]
Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 2007 Within a gearbox the majority of transmission losses can be attributed to bearing losses, meshing losses, or losses due to windage/churning. In this paper the commercial computational fluid dynamics (CFD) code Fluent 6.2.16 is applied in a two-dimensional study of windage power loss (WPL) from a single spur gear rotating in air.
Eastwick, Carol +2 more
openaire +3 more sources
Windage Losses of Rotating Cylinder
Journal of the Atomic Energy Society of Japan / Atomic Energy Society of Japan, 1968 An empirical relationship for the windage losses of a rotating inner cylinder in a concentric stationary outer cylinder was obtained as a function of the rotaing speed of the inner cylinder and the gap width between both cylinders, through analysis of theories by Taylor, Davey and Batchelor, and experiments by Wendt, Taylor and Donnelly.
Akira KANAGAWA +2 more
openaire +2 more sources
Development of an analytical model to predict the churning power losses of an orthogonal face gear
Engineering Science and Technology, an International Journal, 2023 As one of the basic energy dissipations for one orthogonal face gear running partially submerged in an oil bath, there is no open literature concerned on the churning power losses of the face gear.
Xiang Zhu, Yu Dai
doaj +1 more source
Model for Optimal Power Coefficient Tracking and Loss Reduction of the Wind Turbine Systems
Energies, 2022 This research aimed to introduce a comprehensive mathematical modeling approach based on the maximization of the power coefficient (Cp) to obtain the regulation in pitch angle and tip speed ratio (TSP), taking into account the detailed power losses at ...
Kashif Sohail, Hooman Farzaneh
doaj +1 more source
Computational fluid dynamics modelling of an entire synchronous generator for improved thermal management [PDF]
, 2013 This study is the first in a series dedicated to investigating the airflow and thermal management of electrical machines. Owing to the temperature dependent resistive losses in the machine's windings, any improvement in cooling provides a direct ...
Boglietti A. +21 more
core +2 more sources
Fluids, 2018 Windage (drag) losses have been found to be a key design factor for high power density and high-speed electric motor development. Inducing axial flow between rotor and stator is a common method in cooling the rotor.
Kevin R. Anderson +2 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
Dimensionless Numbers Relationships for Outer Air Seal of Low Pressure Turbine
International Journal of Turbomachinery, Propulsion and Power, 2021 The dimensional analysis and the numerical parametric study of the typical outer air seal from a low-pressure turbine were performed in the framework of the presented paper.
Kacper Pałkus, Piotr Strzelczyk
doaj +1 more source