Simulation of semidilute suspensions by Dissipative Particle Dynamics

Abouzar Moshfegh; Ahmad Jabbarzadeh

Simulation of semidilute suspensions by Dissipative Particle Dynamics

Abouzar Moshfegh, Ahmad Jabbarzadeh

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

Abstract

The stochastic Dissipative Particle Dynamics (DPD) method is calibrated to
discover how relative viscosity of monodisperse colloidal suspension versus volume fraction behaves against different settings assumed for solid mesoparticles. This process together with monitoring the system statistical properties and temperature reveals routes towards capturing the experimental relative viscosity with reasonable computational cost and numerical complexity. Amongst many setting parameters, we only focus on alteration patterns in relative viscosity in semidilute regime obtained by changing solid DPD particles diameter, repulsion coefficient and dissipation rate. Repulsion parameter for solid species plays a major role in adjusting system homogeneity which is crucial to have a stable suspension by avoiding agglomeration. An interesting connection is made between the degree of suspension homogeneity, 3D occupancy patterns and maximum peak in radial distribution function (RDF). The isotropy in diffusion patterns and MSD linear graphs assist to obtain the optimum species size ratio leading to experimental relative viscosity.

Original language	English
Title of host publication	Proceedings of the jointly organized 11th World Congress on Computational Mechanics (WCCM XI)
Subtitle of host publication	5th European Congress on Computational Mechanics (ECCM V) and 6th European Congress on Computational Fluid Dynamics (EVFD VI)
Editors	Eugenio Oñate, Xavier Oliver, Antonio Huerta
Place of Publication	Barcelona, Spain
Publisher	International Center for Numerical Methods in Engineering
Pages	6098-6109
Number of pages	12
Volume	5
ISBN (Electronic)	9788494284472
Publication status	Published - 1 Jul 2014
Externally published	Yes
Event	Joint 11th World Congress on Computational Mechanics, WCCM 2014, the 5th European Conference on Computational Mechanics, ECCM 2014 and the 6th European Conference on Computational Fluid Dynamics, ECFD 2014 - Barcelona, Spain Duration: 20 Jul 2014 → 25 Jul 2014

Other

Other	Joint 11th World Congress on Computational Mechanics, WCCM 2014, the 5th European Conference on Computational Mechanics, ECCM 2014 and the 6th European Conference on Computational Fluid Dynamics, ECFD 2014
Country/Territory	Spain
City	Barcelona
Period	20/07/14 → 25/07/14

Keywords

Colloidal suspension
DPD
Parameterisation
Semidilute regime

Cite this

Moshfegh, A., & Jabbarzadeh, A. (2014). Simulation of semidilute suspensions by Dissipative Particle Dynamics. In E. Oñate, X. Oliver, & A. Huerta (Eds.), Proceedings of the jointly organized 11th World Congress on Computational Mechanics (WCCM XI): 5th European Congress on Computational Mechanics (ECCM V) and 6th European Congress on Computational Fluid Dynamics (EVFD VI) (Vol. 5, pp. 6098-6109). International Center for Numerical Methods in Engineering.

Moshfegh, Abouzar ; Jabbarzadeh, Ahmad. / Simulation of semidilute suspensions by Dissipative Particle Dynamics. Proceedings of the jointly organized 11th World Congress on Computational Mechanics (WCCM XI): 5th European Congress on Computational Mechanics (ECCM V) and 6th European Congress on Computational Fluid Dynamics (EVFD VI). editor / Eugenio Oñate ; Xavier Oliver ; Antonio Huerta. Vol. 5 Barcelona, Spain : International Center for Numerical Methods in Engineering, 2014. pp. 6098-6109

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abstract = "The stochastic Dissipative Particle Dynamics (DPD) method is calibrated to discover how relative viscosity of monodisperse colloidal suspension versus volume fraction behaves against different settings assumed for solid mesoparticles. This process together with monitoring the system statistical properties and temperature reveals routes towards capturing the experimental relative viscosity with reasonable computational cost and numerical complexity. Amongst many setting parameters, we only focus on alteration patterns in relative viscosity in semidilute regime obtained by changing solid DPD particles diameter, repulsion coefficient and dissipation rate. Repulsion parameter for solid species plays a major role in adjusting system homogeneity which is crucial to have a stable suspension by avoiding agglomeration. An interesting connection is made between the degree of suspension homogeneity, 3D occupancy patterns and maximum peak in radial distribution function (RDF). The isotropy in diffusion patterns and MSD linear graphs assist to obtain the optimum species size ratio leading to experimental relative viscosity.",

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publisher = "International Center for Numerical Methods in Engineering",

note = "Joint 11th World Congress on Computational Mechanics, WCCM 2014, the 5th European Conference on Computational Mechanics, ECCM 2014 and the 6th European Conference on Computational Fluid Dynamics, ECFD 2014 ; Conference date: 20-07-2014 Through 25-07-2014",

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Moshfegh, A & Jabbarzadeh, A 2014, Simulation of semidilute suspensions by Dissipative Particle Dynamics. in E Oñate, X Oliver & A Huerta (eds), Proceedings of the jointly organized 11th World Congress on Computational Mechanics (WCCM XI): 5th European Congress on Computational Mechanics (ECCM V) and 6th European Congress on Computational Fluid Dynamics (EVFD VI). vol. 5, International Center for Numerical Methods in Engineering, Barcelona, Spain, pp. 6098-6109, Joint 11th World Congress on Computational Mechanics, WCCM 2014, the 5th European Conference on Computational Mechanics, ECCM 2014 and the 6th European Conference on Computational Fluid Dynamics, ECFD 2014, Barcelona, Spain, 20/07/14.

Simulation of semidilute suspensions by Dissipative Particle Dynamics. / Moshfegh, Abouzar; Jabbarzadeh, Ahmad.
Proceedings of the jointly organized 11th World Congress on Computational Mechanics (WCCM XI): 5th European Congress on Computational Mechanics (ECCM V) and 6th European Congress on Computational Fluid Dynamics (EVFD VI). ed. / Eugenio Oñate; Xavier Oliver; Antonio Huerta. Vol. 5 Barcelona, Spain: International Center for Numerical Methods in Engineering, 2014. p. 6098-6109.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

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T1 - Simulation of semidilute suspensions by Dissipative Particle Dynamics

AU - Moshfegh, Abouzar

AU - Jabbarzadeh, Ahmad

PY - 2014/7/1

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N2 - The stochastic Dissipative Particle Dynamics (DPD) method is calibrated to discover how relative viscosity of monodisperse colloidal suspension versus volume fraction behaves against different settings assumed for solid mesoparticles. This process together with monitoring the system statistical properties and temperature reveals routes towards capturing the experimental relative viscosity with reasonable computational cost and numerical complexity. Amongst many setting parameters, we only focus on alteration patterns in relative viscosity in semidilute regime obtained by changing solid DPD particles diameter, repulsion coefficient and dissipation rate. Repulsion parameter for solid species plays a major role in adjusting system homogeneity which is crucial to have a stable suspension by avoiding agglomeration. An interesting connection is made between the degree of suspension homogeneity, 3D occupancy patterns and maximum peak in radial distribution function (RDF). The isotropy in diffusion patterns and MSD linear graphs assist to obtain the optimum species size ratio leading to experimental relative viscosity.

AB - The stochastic Dissipative Particle Dynamics (DPD) method is calibrated to discover how relative viscosity of monodisperse colloidal suspension versus volume fraction behaves against different settings assumed for solid mesoparticles. This process together with monitoring the system statistical properties and temperature reveals routes towards capturing the experimental relative viscosity with reasonable computational cost and numerical complexity. Amongst many setting parameters, we only focus on alteration patterns in relative viscosity in semidilute regime obtained by changing solid DPD particles diameter, repulsion coefficient and dissipation rate. Repulsion parameter for solid species plays a major role in adjusting system homogeneity which is crucial to have a stable suspension by avoiding agglomeration. An interesting connection is made between the degree of suspension homogeneity, 3D occupancy patterns and maximum peak in radial distribution function (RDF). The isotropy in diffusion patterns and MSD linear graphs assist to obtain the optimum species size ratio leading to experimental relative viscosity.

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KW - DPD

KW - Parameterisation

KW - Semidilute regime

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M3 - Conference proceeding contribution

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SP - 6098

EP - 6109

BT - Proceedings of the jointly organized 11th World Congress on Computational Mechanics (WCCM XI)

A2 - Oñate, Eugenio

A2 - Oliver, Xavier

A2 - Huerta, Antonio

PB - International Center for Numerical Methods in Engineering

CY - Barcelona, Spain

T2 - Joint 11th World Congress on Computational Mechanics, WCCM 2014, the 5th European Conference on Computational Mechanics, ECCM 2014 and the 6th European Conference on Computational Fluid Dynamics, ECFD 2014

Y2 - 20 July 2014 through 25 July 2014

ER -

Moshfegh A, Jabbarzadeh A. Simulation of semidilute suspensions by Dissipative Particle Dynamics. In Oñate E, Oliver X, Huerta A, editors, Proceedings of the jointly organized 11th World Congress on Computational Mechanics (WCCM XI): 5th European Congress on Computational Mechanics (ECCM V) and 6th European Congress on Computational Fluid Dynamics (EVFD VI). Vol. 5. Barcelona, Spain: International Center for Numerical Methods in Engineering. 2014. p. 6098-6109

Simulation of semidilute suspensions by Dissipative Particle Dynamics

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