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CATEGORIES:Engineering Fluids Group Seminar
SUMMARY:The Rayleigh-Taylor Instability Under Rotation - D
 r Matthew Scase\, University of Nottingham
DTSTART;TZID=Europe/London:20131011T130000
DTEND;TZID=Europe/London:20131011T140000
UID:TALK46951AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/46951
DESCRIPTION:“… rotation does not affect the instability or sta
 bility\, as such\, of a [two-layer] stratification
 ” (Chandrasekhar 1961) – is this true?\n\nInterest
  in the Rayleigh-Taylor Instability has increased 
 progressively since Lord Rayleigh's (1883) initial
  work and the investigations of Taylor (1950) and 
 Lewis (1950).  The motivation for the research has
  evolved in time\, from the purely strategic inter
 ests of Taylor and Lewis to include the energy-sup
 ply and astrophysical focus of more recent work.  
 The now-familiar structure of the Rayleigh-Taylor 
 Instability has been observed at small scales in i
 nertial confinement problems\, where the instabili
 ty may limit the length of stable operation of a n
 uclear fusion facility\, to extremely large scales
 \, as observed in the Crab Nebula.  Here we invest
 igate the effects of rotation upon the instability
 .  In particular\, we consider whether a staticall
 y unstable arrangement may be stabilized by rotati
 on of the system.\n\nA variational approach\, base
 d on the work of Miles (1964) and Lamb (1932)\, is
  used to develop a number of testable predictions.
   Whereas classical experiments have required the 
 use of a lock-release mechanism to instigate the f
 low (or elaborate rocketry rigs)\, novel experimen
 ts using a high-powered super-conducting magnet ha
 ve been devised to test the predictions.  
LOCATION:LR3B\, Inglis Building\, CUED.
CONTACT:Dr Henry Burridge
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