Prof. Shravan Veerapaneni's Talk

Aug 07, 2017 - 16:00

Aug 07, 2017 - 17:00

Rm. No. 118 Ground floor Chemical Engg. Dept.

Seminars

Prof. Shravan Veerapaneni Mathematics University of Michigan

Abstract: Simulating the low-Re hydrodynamics of particulate flows is an extremely challenging and important problem that arises in several disciplines. In this talk I will present recent advances made by our group in overcoming several computational bottlenecks especially those arising in the context of dense suspensions confined by complex geometries. In particular a spectrally-accurate scheme to resolve the interactions of close-to-touching particles a novel periodizing scheme for arbitrary geometries and a new boundary integral equation formulation for colloidal and active suspensions will be presented. Incorporating stable time-marching schemes fast direct solvers based on low-rank factorizations and the fast multipole method we were able to simulate the hydrodynamics of over 1000 deformable particles flowing through a periodic microfluidic-chip geometry in less than a minute per time-step on a laptop. I will discuss several applications and our ongoing efforts to simulate the electrohydrodynamics of vesicle suspensions evaluate the stresses experienced by motile cells investigate the controllability of low-Re swimmers and to design microfluidic chips for cell sorting and separation.Bio: Shravan Veerapaneni is an Associate Professor of Mathematics at the University of Michigan. He earned his B. Tech in Mechanical Engineering from IIT Madras PhD in Mechanical Engineering and Applied Mechanics from University of Pennsylvania and held a postdoc position at NYU's Courant Institute of Mathematical Sciences. Veerapaneni's honors include a NSF CAREER and Ralph E. Powe Junior faculty awards and a Gordon Bell Prize. His research group develops fast algorithms for physics-based simulations with particular emphasis in fluid mechanics heat flow and biophysics. Note: This seminar is not mandatory for those registered in CL 702/704.