Micromixing and fluid shear stress significantly affect the nucleation and growth of crystals during the precipitation process. The jet-flow high shear reactor (JFHSR) has strong shear rate and high localized energy dissipation rate, making it promising for applications where the size and the morphology of crystals need to be modified. In this paper, the micromixing properties of JFHSR were first investigated using Villermaux/Dushman method, and the intrinsic correlation among micromixing, shear, and BaSO crystals was explored. The results show that the stator, the increased and , the reduced feed tube diameter and the closer the feed position to the rotor promote micromixing. Excellent micromixing promotes burst nucleation by generating uniform supersaturation, while shear is more likely to provide an environment dominated by the secondary nucleation of fluid shear stress. The correlations of , (about 10 s) and are obtained, providing guidelines for JFHSR design and application

中文翻译：

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微混合和剪切对射流高剪切反应器中沉淀过程的影响


微混合和流体剪切应力显着影响沉淀过程中晶体的成核和生长。射流高剪切反应器（JFHSR）具有强剪切速率和高局部能量耗散率，使其在需要改变晶体尺寸和形貌的应用中具有广阔的前景。本文首先利用 Villermaux/Dushman 方法研究了 JFHSR 的微混合特性，并探讨了微混合、剪切和 BaSO 晶体之间的内在相关性。结果表明，定子、增大的 和 、减小的进料管直径以及进料位置离转子越近都促进微混合。优异的微混合通过产生均匀的过饱和度来促进爆裂成核，而剪切更有可能提供由流体剪切应力的二次成核主导的环境。得到 、（约10 s） 和 的相关性，为JFHSR设计和应用提供指导