Bulletin of the American Physical Society
APS March Meeting 2022
Volume 67, Number 3
Monday–Friday, March 14–18, 2022; Chicago
Session M20: Active Matter and Liquid Crystals in Biological and Bio-Inspired Systems II
8:00 AM–11:00 AM,
Wednesday, March 16, 2022
Room: McCormick Place W-185BC
Sponsoring
Units:
DSOFT DPOLY GSNP
Chair: Kim Weirich, Clemson
Abstract: M20.00007 : Data-driven continuum modeling of active nematics via sparse identification of nonlinear dynamics
9:36 AM–9:48 AM
Presenter:
Connor Robertson
(New Jersey Institute of Technology)
Authors:
Connor Robertson
(New Jersey Institute of Technology)
Anand U Oza
(New Jersey Institute of Technology)
Travis Askham
(New Jersey Institute of Technology)
We here present a model extracted directly from experimental image data via the "sparse identification of nonlinear dynamics" (SINDy) data-driven modeling technique. This model discovery process includes extracting appropriate data for a continuum model from experimental data, constructing a plausible library of model terms, and solving a sparse regression problem. We then discuss the physical implications of the learned model, and compare the model with those proposed previously.
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