Simulating deformable particle suspensions using a coupled lattice-Boltzmann and finite-element method

MacMeccan, Robert; Clausen, Jonathan; Neitzel, G. Paul; Aidun, Cyrus K.

doi:10.1017/s0022112008004011

Cited by 151 publications

(159 citation statements)

References 69 publications

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“…Soft deformable objects such as liquid droplets [1,2], lipid vesicles , red blood cells (RBCs) [25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41], and synthetic capsules [42][43][44][45][46][47][48][49][50][51] exhibit rich behaviors in flows. In recent years, they have received growing attention experimentally, theoretically, and numerically.…”

Section: Introductionmentioning

confidence: 99%

Dynamic modes of microcapsules in steady shear flow: Effects of bending and shear elasticities

Noguchi

2010

Phys. Rev. E

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The dynamics of microcapsules in steady shear flow was studied using a theoretical approach based on three variables: The Taylor deformation parameter αD, the inclination angle θ, and the phase angle φ of the membrane rotation. It is found that the dynamic phase diagram shows a remarkable change with an increase in the ratio of the membrane shear and bending elasticities. A fluid vesicle (no shear elasticity) exhibits three dynamic modes: (i) Tank-treading (TT) at low viscosity ηin of internal fluid (αD and θ relaxes to constant values), (ii) Tumbling (TB) at high ηin (θ rotates), and (iii) Swinging (SW) at middle ηin and high shear rateγ (θ oscillates). All of three modes are accompanied by a membrane (φ) rotation. For microcapsules with low shear elasticity, the TB phase with no φ rotation and the coexistence phase of SW and TB motions are induced by the energy barrier of φ rotation. Synchronization of φ rotation with TB rotation or SW oscillation occurs with integer ratios of rotational frequencies. At high shear elasticity, where a saddle point in the energy potential disappears, intermediate phases vanish, and either φ or θ rotation occurs. This phase behavior agrees with recent simulation results of microcapsules with low bending elasticity.

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Section: Introductionmentioning

confidence: 99%

Dynamic modes of microcapsules in steady shear flow: Effects of bending and shear elasticities

Noguchi

2010

Phys. Rev. E

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“…Aidun et al implemented a spectrin-link red blood cell membrane method coupled with the lattice Boltzmann method [7,[76][77][78][79]. In the method, the particle is represented by a triangular shell mesh, on which the local hydrodynamic force is calculated by momentum exchange method.…”

Section: Deformation Particle Interactionsmentioning

confidence: 99%

“…To capture the deformation process, Reasor et al [77,78] took a spherical capsule to create a baseline RBC mesh whose surface includes a network of 613 points. Then, 59% of its initial volume was deflated while the surface area keeps constant.…”

Section: Deformation Particle Interactionsmentioning

confidence: 99%

“…As shown in Figure 18, the simulating results are in good agreement with previous researches. MacMeccan et al [77] simulated multiply deformable particle suspensions by coupling the lattice Boltzmann method with finite element analysis. They studied more than 200 fluid-filled and initially spherical capsules in unbounded shear flow.…”

Section: Deformation Particle Interactionsmentioning

confidence: 99%

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Hydrodynamic Force Evaluation by Momentum Exchange Method in Lattice Boltzmann Simulations

Wen

Zhang

Fang

2015

Entropy

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Abstract:As a native scheme to evaluate hydrodynamic force in the lattice Boltzmann method, the momentum exchange method has some excellent features, such as simplicity, accuracy, high efficiency and easy parallelization. Especially, it is independent of boundary geometry, preventing from solving the Navier-Stokes equations on complex boundary geometries in the boundary-integral methods. We review the origination and main developments of the momentum exchange method in lattice Boltzmann simulations. Then several practical techniques to fill newborn fluid nodes are discussed for the simulations of fluid-structure interactions. Finally, some representative applications show the wide applicability of the momentum exchange method, such as movements of rigid particles, interactions of deformation particles, particle suspensions in turbulent flow and multiphase flow, etc.

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“…All of the above efforts aim to develop a practical lab-on-a-chip device capable of RBC deformability diagnosis in clinical applications. In addition to the rapidly increasing experimental studies on the deformation of soft biological particles, greater efforts have also been made on the development of modeling tools to simulate particle deformation subject to pressure-driven or shear-driven flows [29][30][31][32][33][34]. Up till now, very little attention has been paid to the particle deformation in electrokinetics-based microfluidic devices.…”

Section: Introductionmentioning

confidence: 99%

Electrokinetic motion of a deformable particle: Dielectrophoretic effect

Mauroy

Sharma

et al. 2011

Electrophoresis

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Electrokinetics-induced motion and deformation of a hyperelastic particle confined in a slit microchannel has been numerically investigated for the first time with a full consideration of the fluid-particle-electric field interactions and the dielectrophoretic (DEP) effect. When the initial orientation of a cylindrical particle with respect to the applied electric field, θ p0 , is 90 o , the particle tends to curl up as a "C" shape when moving from left to right. The electrokineticsinduced particle deformation is due to the joint effects of the shear force arising from the nonuniform Smoluchowski slip velocity on the particle surface, and the asymmetric DEP force with respect to the center of the deformed particle arising from the spatially non-uniform electric field surrounding the particle. The electrokinetics-induced particle deformation is opposite to that of a particle moving in the same direction subjected to a pressure-driven flow. When the initial particle orientation is 0 < θ p0 < 90 o , a net torque arising from the DEP effect progressively rotates and aligns the particle with its longest axis parallel to the applied electric field, thus decreasing the non-uniformity of the electric field and accordingly the particle deformation. The numerical predictions are in qualitative agreement with our previous experimental observation. The results show that the DEP effect is significant and must be taken into account in the modeling of electrokinetic motion of a deformable particle in microfluidics.3

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Simulating deformable particle suspensions using a coupled lattice-Boltzmann and finite-element method

Cited by 151 publications

References 69 publications

Dynamic modes of microcapsules in steady shear flow: Effects of bending and shear elasticities

Dynamic modes of microcapsules in steady shear flow: Effects of bending and shear elasticities

Hydrodynamic Force Evaluation by Momentum Exchange Method in Lattice Boltzmann Simulations

Electrokinetic motion of a deformable particle: Dielectrophoretic effect

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