Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/20918
Title: Numerical study on depinning dynamics of fluids interacting with disorder
Authors: Cao, YG
Chow, WK 
Keywords: Elastic depinning
Fluids
Plastic depinning
Issue Date: 2004
Source: Communications in theoretical physics, 2004, v. 42, no. 4, p. 619-622 How to cite?
Journal: Communications in Theoretical Physics 
Abstract: We investigate the depinning of two-dimensional fluids interacting with quenched disorder, based on Langevin simulations. For weak disorder the fluids depin elastically and flow in an ordered state. A power-law scaling fit between velocity and driving force can be obtained for the onset of motion in the elastic regime. This is in good agreement with that of colloid, charge density wave, and superconducting vortex systems. With an increasing strength of the disorder, we find a sharp crossover to plastic depinning, accompanied by a substantial increase in the depinning force. The scaling fit obtained in the elastic regime becomes invalid when plastic flow occurs. In the plastic regime, the fluids flow in channels and the hexatic order decays exponentially with drives.
URI: http://hdl.handle.net/10397/20918
ISSN: 0253-6102
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

3
Last Week
0
Last month
Citations as of Dec 12, 2018

WEB OF SCIENCETM
Citations

3
Last Week
0
Last month
0
Citations as of Dec 9, 2018

Page view(s)

50
Last Week
0
Last month
Citations as of Dec 9, 2018

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.