University of Cambridge > Talks.cam > Applied and Computational Analysis > Direct simulations of bacterial suspensions

Direct simulations of bacterial suspensions

Add to your list(s) Download to your calendar using vCal

  • UserSebastien Martin (University of Orsay)
  • ClockThursday 19 April 2012, 15:00-16:00
  • HouseMR14, CMS.

If you have a question about this talk, please contact ai10.

We present two-dimensional simulations of self-propelled bacteria swimming in a viscous fluid. Self-propulsion is modelled by a couple of forces of same intensity and opposite direction applied on the rigid bacterial body and on an associated region in the fluid representing the flagellar bundle. The method for solving the fluid flow and the motion of the bacteria is based on a variational formulation written on the whole domain, strongly coupling the fluid and the rigid particle problems: rigid motion is enforced by penalizing the strain rate tensor on the rigid domain, while incompressibility is treated by duality. This model allows to achieve an accurate description of fluid motion and hydrodynamic interactions in moderate to concentrated active suspensions.

This talk is part of the Applied and Computational Analysis series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.

 

© 2006-2024 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity