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SUMMARY:Direct simulations of bacterial suspensions - Sebastien Martin (Un
 iversity of Orsay)
DTSTART:20120419T140000Z
DTEND:20120419T150000Z
UID:TALK37584@talks.cam.ac.uk
CONTACT:6743
DESCRIPTION:We present two-dimensional simulations of self-propelled bacte
 ria swimming\nin a viscous fluid. Self-propulsion is modelled by a couple 
 of forces of\nsame intensity and opposite direction applied on the rigid b
 acterial body\nand on an associated region in the fluid representing the f
 lagellar\nbundle. The method for solving the fluid flow and the motion of 
 the\nbacteria is based on a variational formulation written on the whole\n
 domain\, strongly coupling the fluid and the rigid particle problems: rigi
 d\nmotion is enforced by penalizing the strain rate tensor on the rigid\nd
 omain\, while incompressibility is treated by duality. This model allows\n
 to achieve an accurate description of fluid motion and hydrodynamic\ninter
 actions in moderate to concentrated active suspensions.\n
LOCATION:MR14\, CMS
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