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SUMMARY:Free Boundary-Value Problems for Liquid Crystals - Majumdar\, A (U
 niversity of Bath)
DTSTART:20140626T092000Z
DTEND:20140626T095000Z
UID:TALK53182@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:We discuss modelling strategies for free boundary-value proble
 ms arising in liquid crystal applications. We have recently modelled stabl
 e liquid crystal patterns in shallow cuboid-shaped nematic wells and have 
 computed phase diagrams as a function of geometrical aspect ratio and anch
 oring strength on well boundaries. Recent work by Telo da Gama group (CFTC
 \, Lisbon) shows that our computed patterns are also relevant to wedge-sha
 ped nematic-filled wells at the isotropic-nematic transition temperature. 
 At the isotropic-nematic transition temperature\, the isotropic and nemati
 c phases are separated by a free boundary\, depending on the geometry and 
 the surface effects at play. We discuss modelling approaches to this free-
 boundary problem and the role of such free boundaries in applications. Thi
 s is joint work with Chong Luo\, Samo Kralj and Samo Kralj. \n\n
LOCATION:Seminar Room 1\, Newton Institute
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