Bulletin of the American Physical Society
74th Annual Meeting of the APS Division of Fluid Dynamics
Volume 66, Number 17
Sunday–Tuesday, November 21–23, 2021; Phoenix Convention Center, Phoenix, Arizona
Session P13: Biological Fluid Dynamics: Flying Insects
4:05 PM–6:41 PM,
Monday, November 22, 2021
Room: North 127 ABC
Chair: David Murphy, University of South Florida
Abstract: P13.00009 : Unsteady lift generation of corrugated wing by lambda vortex collapse*
5:49 PM–6:02 PM
Presenter:
Yusuke Fujita
(Program of Mathematical and Life Sciences, Graduate School of Integrated Sciences for Life, Hiroshima University)
Authors:
Yusuke Fujita
(Program of Mathematical and Life Sciences, Graduate School of Integrated Sciences for Life, Hiroshima University)
Makoto Iima
(Program of Mathematical and Life Sciences, Graduate School of Integrated Sciences for Life, Hiroshima University)
In this study, we analyzed flow around two-dimensional corrugated wing model that started impulsively by direct numerical simulations. We focused on a period between the generation of the leading-edge vortices (LEVs) and subsequent interactions, and its detachment. For the flat wing, so-called lambda vortex with the sign opposite to LEV. On the other hand, for the corrugated wing, the lambda vortex collapsed and stuck in the valleys of the corrugated structure in a parameter range. The lambda vortex collapse changes the LEV dynamics to encourage the instantaneous lift enhancement of the corrugated wing. In the presentation, we will discuss the details.
*This work was partially supported by JSPS KAKENHI (19K03671,21J22603) and SECOM Science and Research Foundation.
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700