Velocity Field around a Rigid Flapping Wing with a Winglet in Quiescent Water
This study investigated the effect of a winglet on the velocity field around a rigid flapping wing. Two-dimensional particle image velocimetry was used to capture the velocity field of asymmetric one-degree-of-freedom flapping motion. A comparison was conducted between wings with and without a wing...
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Taiwan Association of Engineering and Technology Innovation
2020-08-01
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doaj-895fd907ca554c90b10068502f43f6e92020-11-25T03:49:38ZengTaiwan Association of Engineering and Technology InnovationAdvances in Technology Innovation2415-04362518-29942020-08-0110.46604/aiti.2020.4674Velocity Field around a Rigid Flapping Wing with a Winglet in Quiescent WaterSrikanth Goli0Arnab Roy1Subhransu Roy2Department of Aerospace Engineering, Indian Institute of Technology, Kharagpur, West Bengal, IndiaDepartment of Aerospace Engineering, Indian Institute of Technology, Kharagpur, West Bengal, IndiaDepartment of Mechanical Engineering, Indian Institute of Technology, Kharagpur, West Bengal, India This study investigated the effect of a winglet on the velocity field around a rigid flapping wing. Two-dimensional particle image velocimetry was used to capture the velocity field of asymmetric one-degree-of-freedom flapping motion. A comparison was conducted between wings with and without a winglet at two flapping frequencies, namely 1.5 and 2.0 Hz. The effect of the winglet on the velocity field was determined by systematically comparing the velocity fields for several wing phase angles during the downstroke and upstroke. The presence of a winglet considerably affected the flow field around the wingtip, residual flow, and added mass interaction. The added mass was lower and residual flow was weaker for the wings with a winglet than for the wings without a winglet. The added mass and velocity magnitudes of the flow field increased proportionally with the flapping frequency. http://ojs.imeti.org/index.php/AITI/article/view/4674square wingflapping motionwingletone-degree-of-freedom flappingPIVvelocity field |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Srikanth Goli Arnab Roy Subhransu Roy |
spellingShingle |
Srikanth Goli Arnab Roy Subhransu Roy Velocity Field around a Rigid Flapping Wing with a Winglet in Quiescent Water Advances in Technology Innovation square wing flapping motion winglet one-degree-of-freedom flapping PIV velocity field |
author_facet |
Srikanth Goli Arnab Roy Subhransu Roy |
author_sort |
Srikanth Goli |
title |
Velocity Field around a Rigid Flapping Wing with a Winglet in Quiescent Water |
title_short |
Velocity Field around a Rigid Flapping Wing with a Winglet in Quiescent Water |
title_full |
Velocity Field around a Rigid Flapping Wing with a Winglet in Quiescent Water |
title_fullStr |
Velocity Field around a Rigid Flapping Wing with a Winglet in Quiescent Water |
title_full_unstemmed |
Velocity Field around a Rigid Flapping Wing with a Winglet in Quiescent Water |
title_sort |
velocity field around a rigid flapping wing with a winglet in quiescent water |
publisher |
Taiwan Association of Engineering and Technology Innovation |
series |
Advances in Technology Innovation |
issn |
2415-0436 2518-2994 |
publishDate |
2020-08-01 |
description |
This study investigated the effect of a winglet on the velocity field around a rigid flapping wing. Two-dimensional particle image velocimetry was used to capture the velocity field of asymmetric one-degree-of-freedom flapping motion. A comparison was conducted between wings with and without a winglet at two flapping frequencies, namely 1.5 and 2.0 Hz. The effect of the winglet on the velocity field was determined by systematically comparing the velocity fields for several wing phase angles during the downstroke and upstroke. The presence of a winglet considerably affected the flow field around the wingtip, residual flow, and added mass interaction. The added mass was lower and residual flow was weaker for the wings with a winglet than for the wings without a winglet. The added mass and velocity magnitudes of the flow field increased proportionally with the flapping frequency.
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topic |
square wing flapping motion winglet one-degree-of-freedom flapping PIV velocity field |
url |
http://ojs.imeti.org/index.php/AITI/article/view/4674 |
work_keys_str_mv |
AT srikanthgoli velocityfieldaroundarigidflappingwingwithawingletinquiescentwater AT arnabroy velocityfieldaroundarigidflappingwingwithawingletinquiescentwater AT subhransuroy velocityfieldaroundarigidflappingwingwithawingletinquiescentwater |
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1724494284093128704 |