Annular Supersonic Swirling Flows with Heterogeneous Condensation
Annular Supersonic Swirling Flows with Heterogeneous Condensation
复制标题
非均相凝结环状超音速旋流
DOI：
10.1007/s11630-016-0893-4
复制
发表时间：
2016
影响因子：
2.5
通讯作者：
Norimasa Shiomi and Toshiaki Setoguchi
中科院分区：
文献类型：
--
作者：
Yusuke Fukushima;Shigeru Matsuo;Norimasa Shiomi and Toshiaki Setoguchi
近年来，通过将旋流与超声速流中产生的凝析气的非平衡冷凝现象相结合，开发了凝析气的分离和提取技术。该技术可以减小设备的尺寸，并且不使用化学品。然而，在分离、萃取的性能和工作原理上还有许多问题没有解决。因此，有必要对该设备进行进一步的研究，以提高其性能。本文通过数值模拟研究了非均匀凝结对超音速环形喷管内旋流流场特性的影响，以及均匀凝结与非均匀凝结在流场中的区别。研究结果表明，带旋流的冷凝流影响着声速线的位置、冷凝物的生成位置和液相的径向分布率。
In recent years, separating and extracting technologies of condensate gas have been developed by combining a swirl flow with non-equilibrium condensation phenomena of condensate gas generated in a supersonic flow. The technology can reduce the size of the device and does not use chemicals. However, there are many unresolved problems for performance of the separation, extraction and operating principle. Therefore it is necessary to research further in order to improve the performance of the equipment. In the present study, the numerical study was carried out to clarify the effect of the heterogeneous condensation on the characteristics of the swirling flow field in a supersonic annular nozzle, and the differences between homogeneous condensation and heterogeneous condensation in the flow field. As the results, it is found that the condensation flow with a swirl affects the position of sonic line, the generating position of condensate and the radial distribution ratio of liquid phase.