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PICS Colloquium: Tong Gao (MSU)

Friday, November 3, 2017 - 2:00pm to 3:00pm

Towne 337

Biomimetic Studies of Fluid-Structure Interaction:  Self-Assembly,
Collective Dynamics, and Autonomous Swimming

Tong Gao
Department of Mechanical Engineering
Department of Computational Mathematics, Science, and Engineering
Michigan State University

New physics and phenomena of how active structures interact with fluids
have generated considerable excitement in the past decade. Uncovering
physical mechanisms of the reciprocal dynamics in the biological/synthetic
active systems often require developing ad-hoc theoretical models and
simulation methods. In this talk, I will first discuss multiscale modeling
and simulation of a bio-active synthetic fluid made from a
microtubule/motor protein assembly. I will illustrate how the local
particle-particle interactions lead to self-organization, and manifest
themselves as large-scale collective motions due to a cascade of
hydrodynamic instabilities. Furthermore, I will show that manipulation of
active matter can be achieved by applying appropriate rigid or soft
boundary confinements to guide them to perform useful mechanical work.
Next, I will introduce a fictitious domain/active strain computation
framework in simulation and design of bio-inspired soft robotic swimmers
that can propel themselves in fluids by performing large deformations, as
well as its applications for resolving a class of fluid-structure
interaction problems in biomedical research.