In solid particle separation process, cyclone separators are commonly used due to their simplicity and low-cost manufacture. A reference design S1 and two novel designs C4, N4 of four-inlet cyclone separator have been investigated computationally using the Reynolds Stress Model for turbulent flow and the Discrete Phase Model for tracking the particles. The numerical model has been validated and confirmed to be a reasonable good candidate for the investigation. The results show that, the design S1 provides the lowest average Euler number (4.415) and the design C4 provides the smallest average cut-off diameter (1.399 $\text{μ}\text{m}$). As comparing the performances using weighted sum method, both two novel designs provide the better performance than the reference design S1. The innovative design N4 delivers the best performance which is 1 % and 0.1 % better in performance than S1 and C4, respectively.

在固体颗粒分离过程中，旋风分离器由于其简单性和低成本制造而被普遍使用。使用湍流的雷诺应力模型和跟踪颗粒的离散相模型，对四入口旋风分离器的参考设计S1和两个新颖设计C4，N4进行了计算研究。数值模型已经过验证并被确认为调查的合理良好候选者。结果表明，设计S1提供最低的平均欧拉数（4.415），设计C4提供最小的平均截止直径（1.399）$\text{μ}\text{米}$）。通过使用加权和方法比较性能，两个新颖的设计均提供了比参考设计S1更好的性能。创新的设计N4提供了最佳性能，分别比S1和C4高出1％和0.1％。