摘要
基于计算流体力学与离散元法耦合(CFD-DEM)的模拟方法,以实现最高流场均匀度为目标,探究了导流锥结构对流场均布的影响.在获得最优导流锥结构的基础上,进一步研究了反应器高径比(I)、开孔率(ϕ)和内外流道截面比(S)对流场均布的影响.结果表明:导流锥形状系数a和n均取1.00时反应器内流场均匀度最高;高径比、开孔率和内外流道截面比较小有利于流场均布;正交实验表明,开孔率对流场均匀度影响最大,反应器最优结构为高径比取4、开孔率取0.055、内外流道截面比取0.2.
To achieve the highest flow field uniformity,the structure of the guide cone and reactor ratio of height to diameter(I),the pipe porosity(ϕ)and cross-sectional area ratio of central pipe to annular channel(S)are studied based on computational fluid dynamics and the discrete element method coupled(CFD-DEM)simulation method,the data of flow field inside the reactor are extracted.The results show that the guide cone with shape coefficients a=1.00 and n=1.00 has the highest uniformity of flow field in the reactor.When I,ϕand S are smaller,it is more conducive to the uniform distribution of flow field.The orthogonal experiment showed thatϕhad the greatest influence on the flow field uniformity.The optimal structure of the reactor is as follows:I=4,ϕ=0.055 and S=0.2.
作者
朱博韬
张亚新
王硕
ZHU Botao;ZHANG Yaxin;WANG Shuo(School of Chemical Engineering,Xinjiang University,Urumqi Xinjiang 830017,China;State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources,School of Chemistry,Xinjiang University,Urumqi Xinjiang 830017,China)
出处
《新疆大学学报（自然科学版）（中英文）》
CAS
2023年第4期444-452,共9页
Journal of Xinjiang University(Natural Science Edition in Chinese and English)
基金
国家自然科学基金“多场耦合煤制天然气甲烷化多尺度模拟与过程强化”(21766034).
作者简介
朱博韬(1997-),男,硕士生,从事设备数值模拟与化工过程强化的研究,E-mail:zbtdeyouxiang@163.com;通讯作者:张亚新(1964-),男,教授,从事设备数值模拟与化工过程强化的研究,E-mail:13619903328@163.com.
