Droplet Collision Simulation by a Multi-Speed Lattice Boltzmann Method

Lycett-Brown, Daniel; Karlin, Iliya V.; Luo, Kai

doi:10.4208/cicp.311009.091110s

Cited by 23 publications

(10 citation statements)

References 17 publications

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“…In 1999, He et al [45] proposed an incompressible LB model for simulating multiphase flows, in which they used an index function to track the interface between different phases. Two distribution functions were employed in the model, the index distribution function f  and the pressure distribution function g  , which satisfy the following evolution equations [45,308]: 66 Later, an incompressible multiphase LB model was proposed by Inamuro et al [46] for multiphase flows at large density ratios. Inamuro et al's model also utilized two different particle distribution functions: one for the order parameter and the other for solving the velocity field without the pressure gradient.…”

Section: Early Modelsmentioning

confidence: 99%

“…Lee and Liu [49] found that the influence of the Weber number emerges in the later stage of spreading. Lycett-Brown et al [66] have studied binary droplet collisions using a multi-speed pseudopotential LB model. Moreover, Lycett-Brown et al [354] have studied the effects of the droplet size ratio and found that the numerical errors (compared with the theoretical analysis) decrease as the droplet size ratio increases.…”

Section: Droplet Collisionsmentioning

confidence: 99%

“…In comparison with the free-energy and the color-gradient LB methods, the pseudopotential LB method and the phase-field LB method have been successfully applied to dynamic multiphase flows at large density ratios ( ) and relatively high Reynolds numbers (e.g., droplet splashing and droplet collision) [39,46,47,49,[66][67][68][69][70][71][72]. Moreover, the pseudopotential and the phase-field multiphase LB methods have been widely employed to simulate multiphase flows in fuel cells (water-gas two-phase transport) and batteries (the electrolyte transport dynamics) as well as phase-change heat transfer (boiling, evaporation, etc.)…”

Section: Introductionmentioning

confidence: 99%

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Lattice Boltzmann methods for multiphase flow and phase-change heat transfer

Luo

Kang

et al. 2016

Progress in Energy and Combustion Science

803

373

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Over the past few decades, tremendous progress has been made in the development of particle-based discrete simulation methods versus the conventional continuum-based methods. In particular, the lattice Boltzmann (LB) method has evolved from a theoretical novelty to a ubiquitous, versatile and powerful computational methodology for both fundamental research and engineering applications. It is a kinetic-based mesoscopic approach that bridges the microscales and macroscales, which offers distinctive advantages in simulation fidelity and computational efficiency. Applications of the LB method are now found in a wide range of disciplines including physics, chemistry, materials, biomedicine and various branches of engineering. The present work provides a comprehensive review of the LB method for thermofluids and energy applications, focusing on multiphase flows, thermal flows and thermal multiphase flows with phase change. The review first covers the theoretical framework of the LB method, revealing certain inconsistencies and defects as well as common features of multiphase and thermal LB models. Recent developments in improving the thermodynamic and hydrodynamic consistency, reducing spurious currents, enhancing the numerical stability, etc., are highlighted. These efforts have put the LB method on a firmer theoretical foundation with enhanced LB models that can achieve larger liquid-gas density ratio, higher Reynolds number and flexible surface tension. Examples of applications are provided in fuel cells and batteries, droplet collision, boiling heat transfer and evaporation, and energy storage. Finally, further developments and future prospect of the LB method are outlined for thermofluids and energy applications.3

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Section: Early Modelsmentioning

confidence: 99%

Section: Droplet Collisionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Lattice Boltzmann methods for multiphase flow and phase-change heat transfer

Luo

Kang

et al. 2016

Progress in Energy and Combustion Science

803

373

View full text Add to dashboard Cite

show abstract

“…Through experimental investigation [1][2][3][4][5][6][7], numerical simulation [8][9][10][11][12][13][14][15][16][17], and theoretical analysis [18], much understanding has been acquired on the collision outcome, including coalescence, bouncing, and separation.…”

Section: Introductionmentioning

confidence: 99%

Non-Newtonian flow effects on the coalescence and mixing of initially stationary droplets of shear-thinning fluids

et al. 2015

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The coalescence of two initially stationary droplets of shear-thinning fluids in a gaseous environment is investigated numerically using the lattice Boltzmann method, with particular interest in non-Newtonian flow effects on the internal mixing subsequent to coalescence. Coalescence of equal-sized droplets, with one being Newtonian while the other is non-Newtonian, leads to the non-Newtonian droplet wrapping around the Newtonian one and hence minimal fine-scale mixing. For unequal-sized droplets, mixing is greatly promoted if both droplets are shear-thinning. When only one of the droplets is shear-thinning, the non-Newtonian effect from the smaller droplet is found to be significantly more effective than that from the larger droplet in facilitating internal jetlike mixing. Parametric study with the Carreau-Yasuda model indicates that the phenomena are universal to a wide range of shear-thinning fluids, given that the extent of shear thinning reaches a certain level, and the internal jet tends to be thicker and develops more rapidly with increasing extent of the shear-thinning effect.

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“…In addition to capturing the non-equilibrium effects, high-order models are also useful for other applications. For instance, by using a D2Q25 model, Daniel et at [6] have shown that high Weber number can be achievable for droplet collision simulations. Implementation of boundary conditions is crucial to application of high-order LB models.…”

Section: Introductionmentioning

confidence: 99%