Results 11 to 20 of about 27,212 (306)
On paths, trails and closed trails in edge-colored graphs [PDF]
Discrete Mathematics & Theoretical Computer Science, 2012 Graph Theory In this paper we deal from an algorithmic perspective with different questions regarding properly edge-colored (or PEC) paths, trails and closed trails. Given a c-edge-colored graph G(c), we show how to polynomially determine, if any, a PEC closed trail subgraph whose number of visits at each vertex is specified before hand. As a
Gourvès, Laurent +3 more
openaire +3 more sources
CFD Simulation of Centrifugal Pump with Different Impeller Blade Trailing Edges
Journal of Marine Science and Engineering, 2023 The centrifugal pump is one of the most widely used types of power machinery in the field of ship and ocean engineering, and the shape of the impeller blade trailing edge has an important influence on their performance.
Hui Li +5 more
doaj +1 more source
Journal of Thermal Science and Technology, 2021 Conventional louver fins have an inherent problem of condensate drainage. In this study, a newly developed louver fin is introduced. The louver fin has an extension at leading edge.
Nae-Hyun KIM
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Center Body Airfoil Design for Blended Wing Body Configuration [PDF]
Xibei Gongye Daxue Xuebao, 2018 To design the center-body airfoil of a blended wing body configuration, the aerodynamic effects of the symmetrical airfoil, trailing-edge reflexed airfoil, leading-edge loaded airfoil and leading-edge loaded plus trailing-edge reflexed airfoil are ...
doaj +1 more source
Design and Experiment of a Seamless Morphing Trailing Edge
Aerospace, 2023 Morphing trailing edge wing as an important morphing wing technology has gained wide attention because of its advantages, such as gust mitigation, improved aerodynamic efficiency, and reduced radar reflective area.
Gui Cheng +4 more
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Assessing Energy Loss and Entropy Production in a Centrifugal Pump with Various Impeller Blade Trailing Edges [PDF]
Journal of Applied Fluid MechanicsThe centrifugal pump holds significant prominence as a widely adopted power machinery in mechanical industries. This study aims to uncover the influence of blade trailing edges on the energy performance of centrifugal pumps.
H. Li, Y. Chen, L. Bai, W. Shi, L. Zhou
doaj +1 more source
Self-noise produced by an airfoil with nonflat plate trailing-edge serrations [PDF]
, 2013 This paper represents the results of an experimental study aimed at reducing the airfoil self-noise by the trailing edge serration of four different sawtooth geometries (defined in the serration angle and length).
Vathylakis, A +3 more
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Identifying global hotspots of avian trailing-edge population diversity
Global Ecology and Conservation, 2020 Climate change is causing the ranges of many species to shift poleward and to higher elevations. Trailing-edge populations near the low-latitude edge of a shifting range are predicted to be at high risk of climate-induced extinction, but conservation ...
Samuel A. Merker, Richard B. Chandler
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Trailing Edge Noise Reduction by Passive and Active Flow Controls [PDF]
, 2014 This paper presents the results on the use of porous metal foams (passive control) and dielectric barrier surface plasma actuations (active control) for the reduction of vortex shedding tonal noises from the nonflat plate type trailing edge serration in ...
Kim, JH +7 more
core +1 more source
Applied Sciences, 2021 In order to ensure the blade strength of large-scale wind turbine, the blunt trailing edge airfoil structure is proposed, aiming at assessing the impact of the trailing edge shape on the flow characteristics and airfoil performance.
Pan Xiong +4 more
doaj +1 more source