摘要
微重力环境下的气液分离作为尿液预处理单元的关键环节对维持系统压力稳定,保证蒸汽压缩蒸馏装置安全运行具有至关重要的作用。为了实现微重力条件下气/液(尿)分离,采用ICEM CFD软件建立了锥式动态气液分离装置的有限元模型;利用Fluent数值模拟了装置内部气液两相的分离过程,分析了锥式转鼓的旋转速度、气液混合物中各组分的含量、气泡直径大小等参数对分离效果的影响,为未来微重力环境下气液分离装置的设计优化和效率提高提供了有效的参考依据。
The separation of gas-liquid under microgravity is the key part of the urine pretreatment unit,which is very important to maintain the pressure stability of the system and ensure the safe operation of vapor compression distillation.In order to realize gas-liquid separation（urine）under microgravity,the finite element model of cone dynamic gas-liquid separator was established by using ICEM CFD software.The separation process of gas-liquid in the device was simulated by using Fluent software.The influence of rotating speed of cone drum,content of components in gas-liquid mixture,bubble size and some other parameters on the separation effect were analyzed.The reference is provided for the structure optimization and efficiency improvement of gas-liquid separator in the future microgravity environment.
出处
《华北理工大学学报（自然科学版）》
CAS
2017年第4期60-65,共6页
Journal of North China University of Science and Technology：Natural Science Edition
关键词
微重力
动态气液分离装置
数值模拟
分离效率
FLUENT
microgravity
dynamic gas-liquid separator
numerical simulation
separation efficiency
fluent
