Results 141 to 150 of about 21,203 (173)

Pore-scale effects of geometry and spacing on bubble dynamics and heat transfer in nucleate pool boiling on porous structures

The Physics of Fluids
Enhancing pool boiling heat transfer within porous media remains a formidable challenge, primarily due to the intricate coupling between complex structural parameters and multiphase transport phenomena.
Ying Zhang, Zhanpeng Liu, Wandong Zhao, Zhaoqing Ke, Lingxiao Weng, Yuan Tian   +5 more
semanticscholar   +1 more source

The lattice Boltzmann method for nearly incompressible flows

Journal of Computational Physics, 2020
This review summarizes the rigorous mathematical theory behind the lattice Boltzmann equation (LBE). Relevant properties of the Boltzmann equation and a derivation of the LBE from the Boltzmann equation are presented.
P. Lallemand, Li-Shi Luo, M. Krafczyk, W. Yong   +3 more
semanticscholar   +1 more source

Multiple-relaxation-time lattice Boltzmann method for the Navier-Stokes and nonlinear convection-diffusion equations: Modeling, analysis, and elements.

Physical Review E, 2020
In this paper, we first present a unified framework of multiple-relaxation-time lattice Boltzmann (MRT-LB) method for the Navier-Stokes and nonlinear convection-diffusion equations where a block-lower-triangular-relaxation matrix and an auxiliary source ...
Z. Chai, B. Shi
semanticscholar   +1 more source

Direct numerical simulation of decaying homogeneous isotropic turbulence — numerical experiments on stability, consistency and accuracy of distinct lattice Boltzmann methods

International Journal of Modern Physics C, 2019
Stability, consistency and accuracy of various lattice Boltzmann schemes are investigated by means of numerical experiments on decaying homogeneous isotropic turbulence (DHIT). Therefore, the Bhatnagar–Gross–Krook (BGK), the entropic lattice Boltzmann (ELB), the two-relaxation-time (TRT), the regularized lattice Boltzann (RLB) and the multiple ...
Haussmann, Marc, Simonis, Stephan, Nirschl, Hermann, Krause, Mathias J.   +3 more
openaire   +2 more sources

Fast level set method for glioma brain tumor segmentation based on Superpixel fuzzy clustering and lattice Boltzmann method

Comput. Methods Programs Biomed., 2020
BACKGROUND AND OBJECTIVE Brain tumor segmentation is a challenging issue due to noise, artifact, and intensity non-uniformity in magnetic resonance images (MRI). Manual MRI segmentation is a very tedious, time-consuming, and user-dependent task.
A. Khosravanian, M. Rahmanimanesh, P. Keshavarzi, S. Mozaffari   +3 more
semanticscholar   +1 more source

Quantum lattice Boltzmann method for simulating nonlinear fluid dynamics

npj Quantum Information
Quantum computing holds transformative potential for simulating nonlinear physical systems, such as fluid turbulence. However, mapping nonlinear dynamics to the linear operations required by quantum hardware remains a fundamental challenge.
Boyuan Wang, Zhaoyuan Meng, Yaomin Zhao, Yuemin Yang   +3 more
semanticscholar   +1 more source

Simulation of quasi-static drainage displacement in porous media on pore-scale: Coupling lattice Boltzmann method and pore network model

, 2020
Lattice Boltzmann method (LBM) and pore network model (PNM) are two types of simulation methods for modelling the fluid flow in porous media at the pore scale.
Jianlin Zhao, Feifei Qin, D. Derome, J. Carmeliet   +3 more
semanticscholar   +1 more source

Analysis of flow field characteristics of pseudoplastic fluid mixing based on lattice Boltzmann method

The Physics of Fluids
Pseudoplastic fluid mixing is essential for homogenization in chemical industrial processes. This study validates a lattice Boltzmann method program and investigates the effects of impeller speed and rheological parameters on mixing flow fields.
Juanjuan Qiao, Tian Liu, Longhao Xiang, Cheng Peng, Songying Chen   +4 more
semanticscholar   +1 more source

Energy Transfer Characteristics of Surface Vortex Heat Flow Under Non-Isothermal Conditions Based on the Lattice Boltzmann Method

Processes
During liquid drainage from intermediate vessels in various industrial processes such as continuous steel casting, aircraft fuel supply, and chemical separation, free-surface vortices commonly occur. The formation and evolution of these vortices not only
Qing Yan, Lin Li, Yun-chuan Tan
semanticscholar   +1 more source

Investigation of MHD natural convection in a porous media by double MRT lattice Boltzmann method utilizing MWCNT–Fe3O4/water hybrid nanofluid

International Journal of Heat and Mass Transfer, 2019
In this paper, a new double multi relaxation time (MRT) Lattice Boltzmann method (LBM) has been used to simulate magnetohydrodynamics (MHD) natural convection in a porous media.
H. Sajjadi, A. A. Delouei, M. Izadi, R. Mohebbi   +3 more
semanticscholar   +1 more source