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SUMMARY:MEchanics GAthering -MEGA- Seminar: Stable self-organization for s
 chooling swimmers through hydrodynamic interactions
DTSTART:20210930T161500
DTEND:20210930T173000
DTSTAMP:20260510T202447Z
UID:630e20bff983145d89296723f96305a25f829c372aa2aa8feb1e0e2d
CATEGORIES:Conferences - Seminars
DESCRIPTION:Melike Kurt (Aerodynamics and Flight Mechanics Group\, Univers
 ity of Southampton)\nAbstract Schooling fish are one of nature’s most u
 biquitous and mesmerizing examples with a myriad of hypotheses related to 
 their functions. Freely swimming fish or fish-like swimmers experience for
 ces\, pushing and pulling them in multiple directions\, that can directly 
 affect the schooling order purely through hydrodynamic interactions. Here\
 , we will examine the effect of these flow-mediated forces on schooling or
 der through experiments using pure-pitching foils\, as a simple representa
 tion of schooling swimmers. First\, experiments and computations for a foi
 l in ground effect (interacting with the ground) have been conducted. It i
 s discovered that there is indeed an equilibrium altitude where the foil e
 xperiences zero lift. Second\, the forces produced by two hydrofoils in th
 e interaction plane are examined at an out-of-phase synchrony. The foils a
 re found to be attracted into a stable equilibrium position in a side-by-s
 ide arrangement where the relative force experienced by individual foils i
 s zero. Additionally\, the schooling swimmers experience a collective thru
 st and efficiency increase up to 100% and 40%\, respectively\, around this
  equilibrium position\, whereas staggered arrangements yield thrust and ef
 ficiency gains up to 94% and 87%\, respectively\, compared to two hydrofoi
 ls in isolation. These newfound schooling performance and stability charac
 teristics suggest that fluid-mediated equilibria may play a role in the co
 ntrol strategies of schooling fish and fish-inspired robots.\n\nBio Melik
 e Kurt is a postdoctoral fellow in the Aerodynamics and Flight Mechanics G
 roup at the University of Southampton. At the intersection of fluid mechan
 ics and biology\, her research interests are related to bio-inspired engin
 eering and fluid-structure interactions. She has specific interests in uns
 teady fluid mechanics\, biological flying and swimming\, multiple-body flo
 w interactions\, and vortex dynamics.\n\nMelike Kurt grew up in Bursa\, Tu
 rkey\, and relocated to Istanbul to attend to Istanbul Technical Universit
 y where she received a B.Sc. degree in Mechanical Engineering (2011). Prom
 ptly after\, she started her masters studies in Bogazici University where 
 she received her M.Sc. degree in Mechanical Engineering (2014). Here\, her
  thesis was selected for the Best M.Sc. Thesis award in the Faculty of Eng
 ineering. After the completion of her masters studies\, she joined the Uns
 teady Flow Interactions Lab at Lehigh University in Pennsylvania\, USA\, r
 eceiving her Ph.D. in Mechanical Engineering in 2020. Her dissertation\, e
 xploring multiple body flow interactions and energetics based on propulsio
 n in fish schools\, was selected for the Outstanding Dissertation Award by
  Lehigh University Mechanical Engineering Department.
LOCATION:MED 0 1418 https://plan.epfl.ch/?room==MED%200%201418 https://epf
 l.zoom.us/j/67873367071?pwd=b0NEeWY2MFJqNGUzUitJV256YSt6QT09
STATUS:CONFIRMED
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