We extensively examined and discussed the performance of microjet mixers that consisted of two concentrically arranged tubes. The orientation of the feed streams with respect to the inner and outer inlets was the crucial factor for promoting the desired reaction. The Reynolds number after jetting and the velocity ratio of the inner and outer fluids were the key variables for promoting vigorous jetting and efficient mixing. By choosing the appropriate operating conditions, the microjet mixers exhibited excellent performance. The design protocol for microjet mixers was established based on mixing time measurements. We successfully maximized the throughput in one channel and numbered-up the microjet mixers. The microjet mixers also proved to be useful for treating viscous fluids with the appropriate choice of the feed orientation. The complete mixing of water with a 200 times more viscous fluid was achieved in 20 ms.

中文翻译：

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微型喷射混合器的设计方案，可在任意流量比下实现理想的混合时间

我们广泛检查和讨论了由两个同心布置的管子组成的微型喷射混合器的性能。进料流相对于内部和外部入口的取向是促进所需反应的关键因素。喷射后的雷诺数和内外流体的速度比是促进剧烈喷射和有效混合的关键变量。通过选择合适的操作条件，微喷射混合器表现出出色的性能。基于混合时间的测量，建立了微喷射混合器的设计方案。我们成功地在一个通道中最大程度地提高了产量，并对微型喷射混合器进行了编号。微喷气混合器也被证明是用于与所述进料方向的适当的选择处理粘性流体是有用的。