Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Effect of flapping frequency on aerodynamics of wing in freely hovering flight
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg, MWL Marcus Wallenberg Laboratoriet. KTH, Skolan för industriell teknik och management (ITM), Centra, Competence Center for Gas Exchange (CCGEx).
2015 (Engelska)Ingår i: Computers & Fluids, ISSN 0045-7930, E-ISSN 1879-0747, Vol. 117, s. 79-87Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The two-dimensional incompressible Navier-Stokes equations are solved using the immersed boundary method. The wing is driven to translate in the horizontal direction and rotate periodically to emulate the wing motion of a fruit fly in normal hovering flight, while the motion in the vertical direction responds passively to the action of the wing aerodynamic lift and weight of the insect body. The insect body is modeled by a point mass. It is shown that flapping wing cannot produce required lift to maintain stable hovering flight in specified range with low flapping frequencies, if the insect weight is equivalent to the averaged wing lift in one cycle on the assumption of zero vertical velocity. The vertical velocity influences the instantaneous angle of attack of the hovering wing, which results in the variation in aerodynamics of the wing. The insect may experience fluctuating hovering flight with a reduced weight when the flapping frequency is low. The fluctuating amplitude decreases with increasing flapping frequency. The efficiency of hovering flight is also a problem of concern.

Ort, förlag, år, upplaga, sidor
2015. Vol. 117, s. 79-87
Nyckelord [en]
Biological fluid dynamics, Fluid-structure interactions, Immersed boundary method, Swimming/flying
Nationell ämneskategori
Farkostteknik
Identifikatorer
URN: urn:nbn:se:kth:diva-170195DOI: 10.1016/j.compfluid.2015.05.004ISI: 000358269500008Scopus ID: 2-s2.0-84929624570OAI: oai:DiVA.org:kth-170195DiVA, id: diva2:828221
Anmärkning

QC 20150630

Tillgänglig från: 2015-06-30 Skapad: 2015-06-29 Senast uppdaterad: 2017-12-04Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltextScopus

Sök vidare i DiVA

Av författaren/redaktören
Du, Lin
Av organisationen
MWL Marcus Wallenberg LaboratorietCompetence Center for Gas Exchange (CCGEx)
I samma tidskrift
Computers & Fluids
Farkostteknik

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 210 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf