Transport Mechanism and Optimization Design of LBM–LES Coupling-Based Two-Phase Flow in Static Mixers DOI Open Access
Qiong Lin, Qihan Li,

Pu Xu

et al.

Processes, Journal Year: 2025, Volume and Issue: 13(6), P. 1666 - 1666

Published: May 26, 2025

Static mixers have been widely used in marine research fields, such as control systems, ballast water treatment and seawater desalination, due to their high efficiency, low energy consumption, broad applicability. However, the turbulent mixing process fluid–wall interactions involving complex structures make transport characteristics of static nonlinear, which affect efficiency stability fluid device. Here, modeling design optimization two-phase flow dynamics a mixer face many challenges. This paper proposes problem-solving method for mixers, based on lattice Boltzmann (LBM) large eddy simulation (LES). The strategies component are analyzed. First, model is set up, LBM multiple-relaxation-time wall-adapting local (MRT-WALE) vortex viscosity coupling model. Using octree block refinement technology, interaction mechanism between wall during explored. Then, field analyzed under different rates element configurations improve stability. results indicate that proposed methods can reveal dynamic evolution mixed-flow fields. Blade components main driving force behind increased kinetic induced formation, enhancing macroscopic effect. Moreover, variations velocity blade angles important factors affecting system pressure drop. If inlet 3 m/s angle 90°, exhibits optimized overall performance. quantitative analysis shows increasing from 80° 100° reduces drop by approximately 44%, while raising 15 lowers outlet COV value about 70%, indicating enhanced uniformity. These findings confirm an combined with 90° provides optimal trade-off performance efficiency.

Language: Английский

LBM simulation of multiphysics-chemical coupling for photocatalytic removal of atmospheric methane using cylindrical and elliptical posts DOI

Qinggang Wang,

Xinyi Yang,

Ouyue Zhang

et al.

Energy, Journal Year: 2025, Volume and Issue: unknown, P. 136625 - 136625

Published: May 1, 2025

Language: Английский

Citations

0
Transport Mechanism and Optimization Design of LBM–LES Coupling-Based Two-Phase Flow in Static Mixers DOI Open Access
Qiong Lin, Qihan Li,

Pu Xu

et al.

Processes, Journal Year: 2025, Volume and Issue: 13(6), P. 1666 - 1666

Published: May 26, 2025

Static mixers have been widely used in marine research fields, such as control systems, ballast water treatment and seawater desalination, due to their high efficiency, low energy consumption, broad applicability. However, the turbulent mixing process fluid–wall interactions involving complex structures make transport characteristics of static nonlinear, which affect efficiency stability fluid device. Here, modeling design optimization two-phase flow dynamics a mixer face many challenges. This paper proposes problem-solving method for mixers, based on lattice Boltzmann (LBM) large eddy simulation (LES). The strategies component are analyzed. First, model is set up, LBM multiple-relaxation-time wall-adapting local (MRT-WALE) vortex viscosity coupling model. Using octree block refinement technology, interaction mechanism between wall during explored. Then, field analyzed under different rates element configurations improve stability. results indicate that proposed methods can reveal dynamic evolution mixed-flow fields. Blade components main driving force behind increased kinetic induced formation, enhancing macroscopic effect. Moreover, variations velocity blade angles important factors affecting system pressure drop. If inlet 3 m/s angle 90°, exhibits optimized overall performance. quantitative analysis shows increasing from 80° 100° reduces drop by approximately 44%, while raising 15 lowers outlet COV value about 70%, indicating enhanced uniformity. These findings confirm an combined with 90° provides optimal trade-off performance efficiency.

Language: Английский

Citations

0