计算力学学报2023，Vol.40Issue(6)：972-978,7.DOI:10.7511/jslx20220328001
脉冲流在Y型和倒Y型微反应器中强化传质的格子Boltzmann模拟
Lattice Boltzmann simulation of mass transfer enhancement by pulsed flow in Y-type and inverted-Y-type micro-reactors
摘要
Abstract
The rapid development of continuous flow micro-reactors provides an accurate control path for chemical synthesis technology.The fluid flow,the component mixing and the mass transfer in a micro-reactor are the physical basis of reaction.To some extent,the strengthening of the mass transfer can reasonably improve the mixing effect,increase the components contact area,reduce the size of the micro-reactor,and shorten the molecular diffusion distance.Through improving the configuration of the micro mixer and introducing pulsed flow,the convection and mass transfer can be effectively improved and the reaction can be affected.To quantitatively analyze these effects is the basis of enhancing mass transfer and optimizing the reaction process.In this paper,an effective lattice Boltzmann model about the virtual serial competitive reaction is proposed.The flow field structure,mass mixture,mass transfer and chemical reaction in the Y-type and inverted-Y-type micro-reactors are numerically studied through this model.The effects of pulsed flow on mass transfer and chemical reaction under different flow field configurations are quantitatively analyzed.The conclusion is a significance reference of the micro-reactors design and its precise control.关键词
微反应器/串行竞争反应/格子Boltzmann方法/混合/传质Key words
micro-reactor/serial competitive reaction/lattice Boltzmann method/mixture/mass transfer分类
数理科学引用本文复制引用
麻晓庆,董志强,王洪涛,李云龙..脉冲流在Y型和倒Y型微反应器中强化传质的格子Boltzmann模拟[J].计算力学学报,2023,40(6):972-978,7.基金项目
国家青年科学基金(51106162) （51106162）
山西省自然科学基金(202203021221152)资助项目. （202203021221152）
