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SUMMARY:Contr. Talk 12 - Effect of confinement on lyotropic lamellae dynam
 ics under shear flow
DTSTART;VALUE=DATE-TIME:20181212T101000Z
DTEND;VALUE=DATE-TIME:20181212T103000Z
DTSTAMP;VALUE=DATE-TIME:20260523T152605Z
UID:indico-contribution-482@lindico453.srv.lu.se
DESCRIPTION:Speakers: Luigi Gentile (Department of Biology\, Microbial Eco
 logy Group\, Lund University)\nLyotropic lamellar phases under shear flow 
 show surprising changes in the microscopic structures and physical propert
 ies. Lamellae-to-multi-lamellar-vesicle (MLV) transition has been widely i
 nvestigated\, whereas lamellae tilting and vesicles inclination have not b
 een highlighted during this kind of transition. Flow instabilities and the
 ir correlation with structures and properties in a confined gap is also ma
 tter of investigation. Here time-resolved flow-small angle neutron scatter
 ing (SANS) experiments have been carried out using a 1-2 shear cell to det
 ect inclination and deformation of the MLVs and to correlate spatially dis
 tributed structures in the Couette gap with progressive evolution of the l
 ocal viscosity towards two significantly different values\, leading to sta
 ble and periodic viscosity oscillations. The inclination angle of the MLVs
  has been addressed in terms of capillary number and its spatial behavior 
 along the Couette gap in terms of gap confinement.\n\nhttps://lindico453.s
 rv.lu.se/event/67/contributions/482/
LOCATION:Elite Hotel Ideon Tera
URL:https://lindico453.srv.lu.se/event/67/contributions/482/
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