FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3114274480> ?p ?o ?g. }

• W3114274480 endingPage "106460" @default.
• W3114274480 startingPage "106460" @default.
• W3114274480 abstract "The reduction of wingtip vortices is a critical and challenging task for aircraft wing-design. Inspired by the wingtip morphology of soaring birds, Whitcomb created winglets to reduce the drag of commercial airplanes significantly. As a critical feature of bird flight, the dynamic flapping wing motion could potentially affect the evolution of tip vortices, which has been rarely investigated. To explore the control mechanisms of wingtip vortices by flapping, a flapping wing model with two-jointed arms was designed to mimic geese's flapping motion. The evolution of tip vortices was recorded in a wind tunnel using particle image velocimetry (PIV) system, and physical features were analyzed. It is shown that wingtip vortices change the vorticity concentration and vortex radius as wings flap in a cycle. The continuous coherent streamwise structure could pinch off at the upstroke end. As flapping frequency increases, the vorticity-concentrated tip vortices become dispersed. Circulation change in a cycle is dramatic, and the tip vortices present a directly up- and downward movement, which indicates a wave-like trajectory. Flapping induces the wingtip vortices to wander in a large amplitude and a specific direction instead of randomly in a limited region. Proper orthogonal decomposition (POD) results show that flapping can not only affect the vorticity concentration and radius of tip vortices as well as energy contribution of the first mode, but also increase the energy contribution and induce the coherent field of the second mode into a time-dependent vortex pair. The relative energy contribution and direction of the vortex pair vary with flapping motion, which affects the wandering amplitude and direction. It is suggested that flapping can break up the vorticity-concentrated wingtip vortices, and give them ordered evolution trajectory and directional wandering motion, which could shed light on the effective vortex control and drag reduction for aircraft wing-design." @default.
• W3114274480 created "2021-01-05" @default.
• W3114274480 creator A5013692852 @default.
• W3114274480 creator A5014624026 @default.
• W3114274480 creator A5022328506 @default.
• W3114274480 creator A5057287134 @default.
• W3114274480 creator A5065553586 @default.
• W3114274480 date "2021-03-01" @default.
• W3114274480 modified "2023-10-15" @default.
• W3114274480 title "On the controlled evolution for wingtip vortices of a flapping wing model at bird scale" @default.
• W3114274480 cites W1658402581 @default.
• W3114274480 cites W1966670171 @default.
• W3114274480 cites W1969333141 @default.
• W3114274480 cites W1972970165 @default.
• W3114274480 cites W1995666505 @default.
• W3114274480 cites W2008389693 @default.
• W3114274480 cites W2010620093 @default.
• W3114274480 cites W2018621241 @default.
• W3114274480 cites W2018842574 @default.
• W3114274480 cites W2020833431 @default.
• W3114274480 cites W2027589934 @default.
• W3114274480 cites W2035670377 @default.
• W3114274480 cites W2037279271 @default.
• W3114274480 cites W2041374538 @default.
• W3114274480 cites W2050241154 @default.
• W3114274480 cites W2059589721 @default.
• W3114274480 cites W2061554146 @default.
• W3114274480 cites W2084285269 @default.
• W3114274480 cites W2089399734 @default.
• W3114274480 cites W2090046464 @default.
• W3114274480 cites W2104842915 @default.
• W3114274480 cites W2112823474 @default.
• W3114274480 cites W2113029460 @default.
• W3114274480 cites W2114103730 @default.
• W3114274480 cites W2122747372 @default.
• W3114274480 cites W2125858554 @default.
• W3114274480 cites W2130214513 @default.
• W3114274480 cites W2142383886 @default.
• W3114274480 cites W2144869282 @default.
• W3114274480 cites W2151570947 @default.
• W3114274480 cites W2151970749 @default.
• W3114274480 cites W2160140336 @default.
• W3114274480 cites W2166061256 @default.
• W3114274480 cites W2316246105 @default.
• W3114274480 cites W2325871378 @default.
• W3114274480 cites W2488351748 @default.
• W3114274480 cites W2512231172 @default.
• W3114274480 cites W2898109409 @default.
• W3114274480 cites W2898441089 @default.
• W3114274480 cites W2921994505 @default.
• W3114274480 cites W2969370535 @default.
• W3114274480 cites W2971456321 @default.
• W3114274480 cites W2980584569 @default.
• W3114274480 cites W3010060026 @default.
• W3114274480 doi "https://doi.org/10.1016/j.ast.2020.106460" @default.
• W3114274480 hasPublicationYear "2021" @default.
• W3114274480 type Work @default.
• W3114274480 sameAs 3114274480 @default.
• W3114274480 citedByCount "6" @default.
• W3114274480 countsByYear W31142744802021 @default.
• W3114274480 countsByYear W31142744802022 @default.
• W3114274480 countsByYear W31142744802023 @default.
• W3114274480 crossrefType "journal-article" @default.
• W3114274480 hasAuthorship W3114274480A5013692852 @default.
• W3114274480 hasAuthorship W3114274480A5014624026 @default.
• W3114274480 hasAuthorship W3114274480A5022328506 @default.
• W3114274480 hasAuthorship W3114274480A5057287134 @default.
• W3114274480 hasAuthorship W3114274480A5065553586 @default.
• W3114274480 hasConcept C121332964 @default.
• W3114274480 hasConcept C127413603 @default.
• W3114274480 hasConcept C13393347 @default.
• W3114274480 hasConcept C140820882 @default.
• W3114274480 hasConcept C146978453 @default.
• W3114274480 hasConcept C176738000 @default.
• W3114274480 hasConcept C200114574 @default.
• W3114274480 hasConcept C2780444116 @default.
• W3114274480 hasConcept C38807378 @default.
• W3114274480 hasConcept C4164206 @default.
• W3114274480 hasConcept C57879066 @default.
• W3114274480 hasConcept C74650414 @default.
• W3114274480 hasConcept C97257150 @default.
• W3114274480 hasConcept C97355855 @default.
• W3114274480 hasConceptScore W3114274480C121332964 @default.
• W3114274480 hasConceptScore W3114274480C127413603 @default.
• W3114274480 hasConceptScore W3114274480C13393347 @default.
• W3114274480 hasConceptScore W3114274480C140820882 @default.
• W3114274480 hasConceptScore W3114274480C146978453 @default.
• W3114274480 hasConceptScore W3114274480C176738000 @default.
• W3114274480 hasConceptScore W3114274480C200114574 @default.
• W3114274480 hasConceptScore W3114274480C2780444116 @default.
• W3114274480 hasConceptScore W3114274480C38807378 @default.
• W3114274480 hasConceptScore W3114274480C4164206 @default.
• W3114274480 hasConceptScore W3114274480C57879066 @default.
• W3114274480 hasConceptScore W3114274480C74650414 @default.
• W3114274480 hasConceptScore W3114274480C97257150 @default.
• W3114274480 hasConceptScore W3114274480C97355855 @default.
• W3114274480 hasFunder F4320321001 @default.
• W3114274480 hasFunder F4320321543 @default.

• next