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UID:0-511@aerospace.technion.ac.il

DTSTART;TZID=Asia/Jerusalem:20150729T163000

DTEND;TZID=Asia/Jerusalem:20150729T173000

DTSTAMP:20230603T192617Z

URL:https://aerospace.technion.ac.il/events/transition-in-plane-poiseuille
 -flow/

SUMMARY:Transition in Plane Poiseuille Flow
DESCRIPTION:Lecturer:Federico Roizner\n Faculty:Department of Aerospace Eng
 ineering\n Institute:Technion – Israel Institute of Technology\n Locatio
 n:Classroom 165\, ground floor\, Library\, Aerospace Eng.\n Zoom: \n Abstr
 act: \n Details: \n Transition to turbulence initiated by linear transient
  growth mechanism in plane Poiseuille flow is demonstrated in the present 
 study. A novel analytical approximation of the linear transient growth mec
 hanism enables us to perform a secondary linear stability analysis of the 
 modified base-flow. Two possible routes to transition will be presented. 
  The first one is initiated by four decaying odd normal modes which form 
 a counter-rotating vortex pair\, whereas the second is initiated by five e
 ven decaying modes which form a pair of counter-rotating pairs. Because of
  the minimal number of modes participating in the transition process it is
  possible to follow the transition stages analytically employing  multipl
 e time scale analysis. The analytical results are compared with the direct
  numerical simulations demonstrating a very good agreement. 
CATEGORIES:Seminars
LOCATION:Classroom 165\, ground floor\, Library\, Aerospace Eng.

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DTSTART:20150327T030000

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