本文对基于非对称分离重组原理优化得到的错位通道微混合器的混合特性进行了数值模拟，并采用混合强度值作为衡量指标。结果表明，Re在1到80的变化范围内，微混合器的混合效果受通道几何结构参数影响较大，即主次通道上错位通道结构的布置有利于提高微混合器的混合强度。综合考虑混合性能和微通道内压降变化等条件，当错位通道结构参数w3／w4=l时，非对称分离重组错位通道微混合器的混合强度可提高到86％左右。
Based on the principle of asymmetric split and recombine, this paper has adopted a numerical simulation for the optimized micromixer with dislocation sub-channel to get mixing performance and taken the mixing index as a measurement index. The results show that when Re is ranging from 1 to 80, parameters of geometric structure affect the mixing index of the micromixer obviously and the mixing index is improved if the dislocation sub-channel is set in the major channel. Considering the mixing performance and the pressure drop in the sub-channel, the mixing index of asymmetric split and recombine micromixer with dislocation sub-channel can be increased to 86% when the ~eometric structure parameter of the dislocation sub-channel is w3/w4=l.
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