Guest Seminar: Sankalp Nambiar Postdoctoral Researcher Nordita, Sweden

Guest Seminar: Sankalp Nambiar Postdoctoral Researcher Nordita, Sweden

When:
January 25, 2023 @ 4:00 pm – 5:00 pm
2023-01-25T16:00:00+05:30
2023-01-25T17:00:00+05:30
Where:
MSB 241
Contact:
Abhijit P Deshpande
044-22574150
Title
Hydrodynamic interaction of microswimmers with deformable interfaces
Abstract
In confined environments, swimming microorganisms interact with boundaries for various physical and biological imperatives. These boundaries can either be rigid such as cracks in rocks, metal surfaces, or deformable surfaces and interfaces such as blood capillaries, membrane boundaries and fluid interfaces. Understanding the fluid-mediated hydrodynamics of such systems is important to gain insights into the dynamics, which crucially depends on the type of boundary. In this talk, I will present a mathematical description for the coupled hydrodynamics of an orientable micro-swimmer in the vicinity of a single deformable interface, and when it is confined between a deformable interface and a rigid boundaryModeling the swimmer as a slender body that can execute random changes to its orientation, I will characterize the modification to its rotation and translation relative to the deformable interface, which can deform due to surface tension and elastic bendingI will highlight how an inter-play between the intrinsic swimmer reorientations, the fluid and interface properties can enable the swimmer to migrate both towards and away from the interface.