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PICS Colloquium: Tong Gao (MSU)

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

Towne 337

Title:
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

Abstract:
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.