Imposing LeesEdwards Boundary Conditions in Dissipative Particle Dynamics

doi:10.3969/j.issn.0253-374x.2012.01.025

Home > Archive>Volume 40, Issue 1, 2012 >0137-0142. DOI:10.3969/j.issn.0253-374x.2012.01.025

Imposing LeesEdwards Boundary Conditions in Dissipative Particle Dynamics
DOI:
                        10.3969/j.issn.0253-374x.2012.01.025
                    
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                        CHEN ShuoCHEN Shuo
College of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China
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JIN YabinJIN Yabin
College of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China
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ZHANG MingkunZHANG Mingkun
College of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China
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SHANG ZhiSHANG Zhi
Institute of High Performance Computing, A*STAR, Singapore 138632,Singapore
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Abstract:

Considering the cell subdivision method and the modified velocityVerlet algorithm, the implementation of LeesEdwards boundary conditions for DPD method was investigated. The simulated results show that the profiles of velocities, densities, temperatures, pressures and stresses agree well with the expected. Furthermore, when dissipative coefficient γ was increased to 100, the velocity profile in the system was homogeneous, indicating that the LE boundary conditions still valid for higher dissipation rate. Viewpoints different from Ref ［21］ are proposed.

Key words:dissipative particle dynamics; LeesEdwards boundary conditon; cell subdivision; velocity-Verlet algorithm

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CHEN Shuo, JIN Yabin, ZHANG Mingkun, SHANG Zhi. Imposing LeesEdwards Boundary Conditions in Dissipative Particle Dynamics[J].同济大学学报(自然科学版),2012,40(1):0137~0142

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Received:November 02,2010
Revised:December 02,2011
Adopted:April 13,2011
Online: February 06,2012
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