scholarly journals Simulation of dense non-Brownian suspensions with the lattice Boltzmann method: shear jammed and fragile states

Soft Matter ◽  
2020 ◽  
Vol 16 (4) ◽  
pp. 945-959 ◽  
Author(s):  
Pradipto ◽  
Hisao Hayakawa
Keyword(s):  
Lattice Boltzmann Method ◽  
Lattice Boltzmann ◽  
Fragile States ◽  
Exotic States ◽  
Dense Suspensions ◽  
Boltzmann Method

We performed simulations to unveil the role of initial shear and anisotropy in the exotic states of dense suspensions.

scholarly journals Correction: Simulation of dense non-Brownian suspensions with the lattice Boltzmann method: shear jammed and fragile states

Soft Matter ◽  
2022 ◽  
Author(s):  
Pradipto ◽  
Hisao Hayakawa
Keyword(s):  
Lattice Boltzmann Method ◽  
Lattice Boltzmann ◽  
Soft Matter ◽  
Fragile States ◽  
Boltzmann Method

Correction for ‘Simulation of dense non-Brownian suspensions with the lattice Boltzmann method: shear jammed and fragile states’ by Pradipto et al., Soft Matter, 2020, 16, 945–959, DOI: 10.1039/C9SM00850K.

scholarly journals Direct numerical simulation of transitional pulsatile stenotic flow using Lattice Boltzmann Method

2015 ◽  
Author(s):  
Kartik Jain
Keyword(s):  
Lattice Boltzmann Method ◽  
Lattice Boltzmann ◽  
Direct Numerical Simulations ◽  
Transitional Flow ◽  
Transitional Flows ◽  
Flow Through ◽  
Simulation Results ◽  
Boltzmann Method ◽  
Realistic Geometries

In the present work, I perform direct numerical simulations of pulsatile flow through a 75% eccentric stenosis using the Lattice Boltzmann Method. The stenosis was studied by Varghese et al. (2007b) in a benchmark computation and the goal of this work is to validate the LBM solver Musubi for transitional flows in anatomically realistic geometries. Whereas most of the study reproduces and compares simulation results from Musubi against the benchmark, the latter part quantifies the Kolmogorov micro-scales and discusses the role of space and time resolutions for the simulation of a transitional flow. The LBM results show an excellent agreement with the previously published results thereby increasing confidence on our Musubi solver for the simulation of transitional flows. The aim of this study is not to compare the computational efficiency of the code or the method but only the physics of the flow.

Effect of Materials’ Wettability on the Heat Transfer Performance of Fluid Flowing through Microchannel by Lattice Boltzmann Method

2011 ◽  
Vol 320 ◽  
pp. 347-352
Author(s):  
Jing Cui ◽  
Wei Zhong Li ◽  
Yang Liu
Keyword(s):  
Heat Transfer ◽  
Lattice Boltzmann Method ◽  
Lattice Boltzmann ◽  
Heat Transfer Performance ◽  
Numerical Approach ◽  
Transfer Performance ◽  
Hydrophobic Property ◽  
Cold Walls ◽  
Boltzmann Method

The material’s wettability plays an important role in the field of micro-fluid flow. In this paper, the effect of material’s wettiability on heat transer performance of fluid flowing through the microchannel has been investigated by numerical approach. The process of the hot liquid flowing through a microchannel with cold walls, whose materials possess different wettabilities, is simulated by lattice Boltzmann method (LBM). The results indicate the heat transfer performance is deteriorated with surface hydrophobic property becomes better. It is because that, for thehydrophobic material, the attractive force of the fluid/solid interaction is small and the flow velocity will be larger which will lead to heat exchang become insufficient. Especially, for the ideal-hydrophobic material, the heat transfer coefficient will be reduced notably. In this case, a gas formed between liquid and soild surface will play a role of the heat insulating layer since the thermal conductivity of the gas is relatively small compared to that of liquid.

scholarly journals Direct numerical simulation of transitional pulsatile stenotic flow using Lattice Boltzmann Method

2015 ◽  
Author(s):  
Kartik Jain
Keyword(s):  
Lattice Boltzmann Method ◽  
Lattice Boltzmann ◽  
Direct Numerical Simulations ◽  
Transitional Flow ◽  
Transitional Flows ◽  
Flow Through ◽  
Simulation Results ◽  
Boltzmann Method ◽  
Realistic Geometries

In the present work, I perform direct numerical simulations of pulsatile flow through a 75% eccentric stenosis using the Lattice Boltzmann Method. The stenosis was studied by Varghese et al. (2007b) in a benchmark computation and the goal of this work is to validate the LBM solver Musubi for transitional flows in anatomically realistic geometries. Whereas most of the study reproduces and compares simulation results from Musubi against the benchmark, the latter part quantifies the Kolmogorov micro-scales and discusses the role of space and time resolutions for the simulation of a transitional flow. The LBM results show an excellent agreement with the previously published results thereby increasing confidence on our Musubi solver for the simulation of transitional flows. The aim of this study is not to compare the computational efficiency of the code or the method but only the physics of the flow.

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