Dissipative particle dynamics simulations for fibre suspensions in newtonian and viscoelastic fluids

Duong-Hong, Duc; Phan‐Thien, N.; Yeo, K. S.; Ausias, Gilles

doi:10.1016/j.cma.2010.01.010

Cited by 9 publications

(2 citation statements)

References 41 publications

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“…However, both showed only short time periods when comparing the simulation to Jeffery's equation and did not investigate the interaction between fibers. Fiber suspensions were also investigated in the framework of dissipative particle dynamics with a focus on Boger fluids [37]. This investigation used a Langrange multiplier to constrain fiber extension and multiple parameters had to be calibrated to analytical solutions in order to achieve correct hydrodynamic forces on the fiber.…”

Section: Resolved Methodsmentioning

confidence: 99%

Parameter Identification of Fiber Orientation Models Based on Direct Fiber Simulation with Smoothed Particle Hydrodynamics

et al. 2020

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The behavior of fiber suspensions during flow is of fundamental importance to the process simulation of discontinuous fiber reinforced plastics. However, the direct simulation of flexible fibers and fluid poses a challenging two-way coupled fluid-structure interaction problem. Smoothed Particle Hydrodynamics (SPH) offers a natural way to treat such interactions. Hence, this work utilizes SPH and a bead chain model to compute a shear flow of fiber suspensions. The introduction of a novel viscous surface traction term is key to achieve full agreement with Jeffery’s equation. Careful modelling of contact interactions between fibers is introduced to model suspensions in the non-dilute regime. Finally, parameters of the Reduced-Strain Closure (RSC) orientation model are identified using ensemble averages of multiple SPH simulations implemented in PySPH and show good agreement with literature data.

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Section: Resolved Methodsmentioning

confidence: 99%

Parameter Identification of Fiber Orientation Models Based on Direct Fiber Simulation with Smoothed Particle Hydrodynamics

et al. 2020

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“…Although various numerical simulations in which the dynamics of fibers was considered have been performed, [10][11][12][13][14][15] such simulations require extreme computational cost and were not suitable for the application to complicated flow problems. For the application to engineering flow problems, we need a computational costly reasonable constitutive model that pro- † Corresponding author.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Merging Flows of Floc-Forming Fluids in a T-Junction Channel Using a Non-Newtonian Viscous Model Based on a Population

Yamamoto

2023

J. Soc. Rheol., Jpn

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The flow of a floc-forming fluid in a T-junction channel was numerically analyzed using a non-Newtonian viscous model based on the population balance equation (PBE) of the floc size. The finite element method was applied to solve the velocity and pressure fields, and the PBE of the floc size distribution was computed to obtain the effective volume fraction of flocs. The Krieger-Dougherty model was used to evaluate the viscosity of suspension of flocs using the effective volume fraction. The numerical simulation captured the characteristic aggregation-breakage behavior of flocs in the flow. In the region where flows from two entrances merge, the effective volume fraction decreases because the breakage of flocs progresses. In the downstream channel, re-aggregation of flocs occurs near the channel centerline, and the effective volume fraction increases. This aggregation-breakage behavior of flocs was confirmed by the analysis of the floc size distribution.

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A smoothed particle hydrodynamics framework for modelling multiphase interactions at meso-scale

Shen

Nguyen

et al. 2018

Comput Mech

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Dissipative particle dynamics simulations for fibre suspensions in newtonian and viscoelastic fluids

Cited by 9 publications

References 41 publications

Parameter Identification of Fiber Orientation Models Based on Direct Fiber Simulation with Smoothed Particle Hydrodynamics

Parameter Identification of Fiber Orientation Models Based on Direct Fiber Simulation with Smoothed Particle Hydrodynamics

Numerical Analysis of Merging Flows of Floc-Forming Fluids in a T-Junction Channel Using a Non-Newtonian Viscous Model Based on a Population

A smoothed particle hydrodynamics framework for modelling multiphase interactions at meso-scale

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