Numerical Investigation on the Propulsive Performance of Biplane Counter-flappingWings

Shuanghou Deng, Tianhang Xiao, Bas van Oudheusden, Hester Bijl

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientific

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Abstract

A numerical investigation is performed to address the flexing effect on the propulsion performance of flapping wing particularly on the counter-flapping wings of the biplane configuration. A Reynolds number of 10,000 is considered
in the present study which corresponds to the flight regime of most existing flapping wing micro air vehicles. The computation involves solving the compressible unsteady Reynoldsaveraged Native-Stokes equation using an inhouse developed code. The flapping motion is incorporated by an efficient deforming overset grid technique which allows multiple flexible bodies to be embedded into the flow field. Results show that the biplane wing with counterflapping configuration has a better propulsive performance in comparison to a single flapping wing. A low-pressure regime between the two wings during the outstroke produces more thrust, while the counter-flapping motion can also generate a surfeit momentum rushing in to the wake. The more flexible wing can produce more thrust while less power is required thus owning a better
propulsive performance.
Original languageEnglish
Title of host publicationInternational Micro Air Vehicle Conference and Flight Competition
Subtitle of host publicationAachen, Germany
Number of pages9
Publication statusPublished - 2015
EventInternational Micro Air Vehicle Conference and Flight Competition 2015 - Aachen, Germany
Duration: 15 Sep 201518 Sep 2015
http://www.dgon-imav.org/index.php?id=79

Conference

ConferenceInternational Micro Air Vehicle Conference and Flight Competition 2015
Abbreviated titleIMAV 2015
CountryGermany
CityAachen
Period15/09/1518/09/15
Internet address

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