CAJ | 학술논문

利用平面激光诱导荧光测试技术对多孔错流喷射混合器内液体混合过程进行了研究，考察了操作条件（射流速度比r、混合流股Reynolds数ReM）和混合器的结构参数（射流小孔直径d、孔径管径比d/D、射流小孔个数n）对射流轨迹线的影响。结果表明，混合流股 Reynolds 数对射流轨迹线影响较小，射流速度比和混合器的结构参数是影响射流轨迹线的主要因素。建立了射流轨迹线的数学模型，并利用实验结果回归了模型参数。模型预测的液体混合过程射流轨迹线与实验结果基本吻合。
이용평면격광유도형광측시기술대다공착류분사혼합기내액체혼합과정진행료연구，고찰료조작조건（사류속도비r、혼합류고Reynolds수ReM）화혼합기적결구삼수（사류소공직경d、공경관경비d/D、사류소공개수n）대사류궤적선적영향。결과표명，혼합류고 Reynolds 수대사류궤적선영향교소，사류속도비화혼합기적결구삼수시영향사류궤적선적주요인소。건립료사류궤적선적수학모형，병이용실험결과회귀료모형삼수。모형예측적액체혼합과정사류궤적선여실험결과기본문합。
Liquid mixing process in a multi-orifice-impinging transverse (MOIT) jet mixer was studied by using planar laser induced fluorescence (PLIF) technique quantitatively. The effects of operation conditions (jet-to-pipe velocity ratio,r, and Reynolds number of the mixing fluids,ReM) and configuration parameters (orifice diameter,d, orifice-to-pipe diameter ratio,d/D, and number of the orifices embedded symmetrically on the wall of the pipe,n) on the macro-mixing performance, in particular, in terms of jet trajectories, were investigated. Jet-to-pipe velocity ratio and configuration parameters of the mixer are the main factors affecting the mixing process, whereasReM had little effect on the jet trajectories. A mathematical model, withx as spanwise coordinate,y as streamwise coordinate, was proposed to predict the jet trajectories of the liquid mixing process in the MOIT jet mixer. The predicted jet trajectories agreed well with those from PLIF experiments.