Spatiotemporal rheochaos in nematic hydrodynamics.
Motivated by recent observations of rheochaos in sheared wormlike micelles, we study the coupled nonlinear partial differential equations for the hydrodynamic velocity and order-parameter fields in a sheared nematogenic fluid. In a suitable parameter range, we find irregular, dynamic shear banding and establish by decisive numerical tests that the chaos we observe in the model is spatiotemporal in nature.
Chakrabarti
Buddhapriya
B
Department of Physics, Indian Institute of Science, Bangalore 560012, India. buddho@physics.umass.edu
Das
Moumita
M
Dasgupta
Chandan
C
Ramaswamy
Sriram
S
Sood
A K
AK