化工进展2017，Vol.36Issue(12)：4385-4391,7.DOI:10.16085/j.issn.1000-6613.2017-0659
基于CFD数值模拟的新型撞击流反应器内管开孔优化
Optimization of the inner tube openings for the new type of impinging stream reactor based on CFD numerical simulation
摘要
Abstract
Based on the self-designed coaxial impinging stream reactor,the present study optimized the inner tube openings by applying CFD numerical simulation technology. Firstly,the velocity scale of raw material solution in the tube inside and outside the entrance were determined by a single-factor experiment,and then orthogonal test was designed based on perforated row numberN,inner tube axial spacingL,the number of radial holes inn and hole diameterD these four test factors respectively. Each set of experiments was designed by numerical simulation,and with micro-holes at different distances from the entrance to the top Speed root-mean-square deviation of evaluation index,the optimization design of inner tube openings was obtained,in which reactor tube evenly along the axial opens 6 micro-holes,with each micro-hole spacing 12mm. Radial direction opens 5 micro-pores evenly,with the aperture of 0.5mm. Based on orthogonal test of optimization results,the model was redefined and circular micro-flow structure within the reaction zone was analyzed by numerical simulation. The results showed that the bombarding beam had a higher velocity gradient and reaction fluid in annularmicro- reaction zone not only collide with each other violently,but also they were fully mixed. Finally, this study achieved the optimal design of the inner tube opening.关键词
反应器/计算流体力学/数值模拟/优化设计/微通道Key words
reactors/computational fluid dynamics/CFD/numerical simulation/optimal design/microchannels分类
化学化工引用本文复制引用
李镇江,孙坤岩,宋冠英..基于CFD数值模拟的新型撞击流反应器内管开孔优化[J].化工进展,2017,36(12):4385-4391,7.基金项目
国家自然科学基金(51672144,51572137,51502149,51272117)、省自然科学基金(ZR2016EMB25)及泰山学者工程专项经费项目. （51672144,51572137,51502149,51272117）
