English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Active nematic materials with substrate friction

MPS-Authors
/persons/resource/persons219873

Golestanian,  Ramin
Department of Living Matter Physics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

Locator
There are no locators available
Fulltext (public)
There are no public fulltexts available
Supplementary Material (public)
There is no public supplementary material available
Citation

Thampi, S. P., Golestanian, R., & Yeomans, J. M. (2014). Active nematic materials with substrate friction. Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 90(6): 062307. doi:10.1103/PhysRevE.90.062307.


Cite as: http://hdl.handle.net/21.11116/0000-0001-7638-C
Abstract
Active turbulence in dense active systems is characterized by high vorticity on a length scale that is large compared to that of individual entities. We describe the properties of active turbulence as momentum propagation is screened by frictional damping. As friction is increased, the spacing between the walls in the nematic director field decreases as a consequence of the more rapid velocity decays. This leads to, first, a regime with more walls and an increased number of topological defects, and then to a jammed state in which the walls deliminate bands of opposing flow, analogous to the shear bands observed in passive complex fluids. © Published by the American Physical Society.