Pattern Formation in Active Fluids

Grover, Sachin (2016) Pattern Formation in Active Fluids. Masters thesis, Indian Institute of Technology Hyderabad.

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Abstract

Active self organization of structure is ubiquitous in nature. In a seminal work, Turing proposed a general reaction diffusion mechanism for pattern formation [2]. The contractile stress generation and resultant pattern formation in actin-myosin cortical layer lying close to cell membrane, controls from cell motility to tissue development. Considering this cortical layer as an active fluid, we first show steady state pattern formation due to competition between diffusive and active contractile processes, following a recent work done by the Julicher group [1]. Starting from a uniform distribution, with increasing activity the system shows a non-equilibrium phase transition to density modulated state. We further investigate the impact of active to passive transformation of the fluid in a stress dependent manner.

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IITH Creators:
IITH CreatorsORCiD
Item Type: Thesis (Masters)
Uncontrolled Keywords: Active fluids, Pattern formation, Spotaneous emergence of flow, active stress, TD515
Subjects: Physics
Divisions: Department of Physics
Depositing User: Library Staff
Date Deposited: 12 May 2016 04:17
Last Modified: 16 Aug 2017 09:19
URI: http://raiith.iith.ac.in/id/eprint/2342
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