Physically based wall boundary condition for dissipative particle dynamics

2013 ◽  
Vol 17 (1) ◽  
pp. 181-198 ◽  
Author(s):  
Aryan Mehboudi ◽  
Mohammad Said Saidi
Keyword(s):  
Boundary Condition ◽  
Dissipative Particle Dynamics ◽  
Particle Dynamics ◽  
Wall Boundary Condition ◽  
Wall Boundary ◽  
Physically Based

A new model for dissipative particle dynamics boundary condition of walls with different wettabilities

2021 ◽  
Vol 42 (4) ◽  
pp. 467-484
Author(s):  
Yuyi Wang ◽  
Jiangwei She ◽  
Zhewei Zhou
Keyword(s):  
Boundary Condition ◽  
Dissipative Particle Dynamics ◽  
Particle Dynamics ◽  
New Model

No-slip boundary condition in finite-size dissipative particle dynamics

2013 ◽  
Vol 232 (1) ◽  
pp. 174-188 ◽  
Author(s):  
S. Kumar Ranjith ◽  
B.S.V. Patnaik ◽  
Srikanth Vedantam
Keyword(s):  
Boundary Condition ◽  
Dissipative Particle Dynamics ◽  
Finite Size ◽  
Slip Boundary Condition ◽  
Particle Dynamics ◽  
Slip Boundary

Viscometric flow for a many-body dissipative particle dynamics (MDPD) fluid with Lees–Edwards boundary condition

2017 ◽  
Vol 44 (3) ◽  
pp. 213-224 ◽  
Author(s):  
Jiayi Zhao ◽  
Shuo Chen ◽  
Nhan Phan-Thien
Keyword(s):  
Boundary Condition ◽  
Dissipative Particle Dynamics ◽  
Particle Dynamics ◽  
Many Body ◽  
Viscometric Flow

CFD modeling the hydrodynamics of binary particle mixtures in bubbling fluidized beds: Effect of wall boundary condition

2012 ◽  
Vol 230 ◽  
pp. 232-240 ◽  
Author(s):  
Hanbin Zhong ◽  
Jinsen Gao ◽  
Chunming Xu ◽  
Xingying Lan
Keyword(s):  
Boundary Condition ◽  
Fluidized Beds ◽  
Cfd Modeling ◽  
Wall Boundary Condition ◽  
Wall Boundary

Impact of wall boundary condition on scaling film cooling performance from near ambient to engine temperatures

2018 ◽  
Vol 132 ◽  
pp. 378-386
Author(s):  
Nathan J. Greiner ◽  
Marc D. Polanka ◽  
James L. Rutledge
Keyword(s):  
Boundary Condition ◽  
Film Cooling ◽  
Cooling Performance ◽  
Wall Boundary Condition ◽  
Wall Boundary

Simulation of Dripping Using Dissipative Particle Dynamics

2010 ◽  
Author(s):  
Sorush Khajepor ◽  
Meysam Joulaian ◽  
Ahmadreza Pishevar ◽  
Yaser Afshar
Keyword(s):  
Dissipative Particle Dynamics ◽  
Thermal Fluctuations ◽  
Particle Dynamics ◽  
Fluid Density ◽  
Mesoscopic Simulation ◽  
Wall Boundary Condition ◽  
Wide Range ◽  
Breakup Time ◽  
Dpd Simulation ◽  
Good Agreement

Dissipative Particle Dynamics (DPD) is a mesoscopic simulation approach used in wide range of applications and length scales. In this paper, a DPD simulation is carried out to study dripping flow from a nozzle. The results of this study are used to answer this question that whether DPD is capable of simulating the free surface fluid on all different scales. A novel wall boundary condition is developed for the nozzle surface that controls its penetrability, near wall fluid density oscillations and the fluid slip close to the wall. We also utilize a new method to capture the real-time instantaneous geometry of the drop. The obtained results are in good agreement with the macroscopic experiment except near the breakup time, when the fluid thread that connects the primitive drop to the nozzle, becomes tenuous. At this point, the DPD simulation can be justified by thermal length of DPD fluid and the finest accuracy of the simulation that is the radius of a particle. We finally conclude that in spite of the fact that DPD can be used potentially for simulating flow on different scales, it is restricted to the nanoscale problems, due to the surface thermal fluctuations.

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