化工学报2025，Vol.76Issue(8)：3772-3788,17.DOI:10.11949/0438-1157.20250035
气液固流化床直接数值模拟研究进展
A review on direct numerical simulation of gas-liquid-solid fluidized bed
摘要
Abstract
Gas-liquid-solid fluidized bed has broad industrial application in chemical and other process industries.However,due to the complexity of the flow(with characteristics of multi-scale,non-stationary,nonlinear,etc.)and the limitations of multi-phase flow measuring techniques and mechanism models,it is still difficult to scientifically design it.At this time,numerical simulations based on computational fluid dynamics have become an effective way to quantitatively describe three-phase flow.The numerical simulation methods for three-phase flow are generally divided into modeling and direct numerical simulation.Among them,direct numerical simulation is to analyze the interaction between bubbles,particles and fluids at the microscopic scale without introducing drag models,which can reveal the interaction mechanisms between gas,liquid and solid phases and is a method that focuses on.The commonly used direct numerical simulation methods for multi-phase flow,such as volume of fluid,level-set,front tracking,immersed boundary,distributed lagrange multiplier/fictitious-domain,lattice Boltzmann and smoothed particle hydrodynamics are outlined,and the advantages and disadvantages of various simulation methods are compared.Afterwards,the research progress on direct numerical simulation of three-phase flow is reviewed.Finally,the existing problems in direct numerical simulation and future research directions are pointed out.关键词
气液固流/多相流/流态化/计算流体力学/直接数值模拟Key words
gas-liquid-solid flow/multi-phase flow/fluidization/computational fluid dynamics/direct numerical simulation分类
化学化工引用本文复制引用
马永丽,安澍,杨捷,刘明言..气液固流化床直接数值模拟研究进展[J].化工学报,2025,76(8):3772-3788,17.基金项目
国家自然科学基金面上项目(22178256) （22178256）
国家重点研发计划项目(2022YFF0705101) （2022YFF0705101）
