Supersonic gas separators: Review of latest developments

The slip effect of micro-droplets in Rankine vortex

“…在 大气科学领域, 台风是一种典型的旋涡运动, 由于其强 度高、范围广、破坏力强、结构多变, 一直是此领域 的研究重点, 如Hendricks等人 [3] 和Martinez等人 [4] 对台 风的生命周期内的结构演化进行了详尽的数值研究, 为台风的预报与防治工作提出了理论指导. 在工业应 用中, 无论是汽轮机 [5] 还是天然气的旋流分离 [6] [10] 的发展, 此方法逐渐完善. 采用拉格朗日方法一 般需要巨大的计算量, 相比之下采用欧拉方法来描述 微粒运动所需计算量就要小很多.…”

Structure improvements and numerical simulation of supersonic separators with diversion cone for separation and purification

“…Since then, based on the simulations and experiments, many researchers have developed similar supersonic separators with the abovementioned designs to overcome the shortcomings of the present supersonic separator. 32,33 Nevertheless, there is a lack of optimization research on the supersonic separator with a diversion cone, particularly with a drainage structure and a swirler. In this study, the design of the supersonic separator with the diversion cone was improved in terms of the structure of the reow and drainage to enlarge the supersonic region in the device; also, the outlet angle of the swirler was optimized to improve the centrifugal separation performance.…”

Droplet behavior of non-equilibrium condensation in the supersonic separator

“…Along with the rapid development of CFD technology, numerical simulation has been broadly used in the research of supersonic swirling separation [7]. Through numerical method, Wen discussed the effect of structure of vortex generator [8], the shape of diffuser [9] and the length of cyclonic separation section [10] on the collection efficiency in a supersonic separator.…”