基于Fluent的涡流管性能及三维强漩流流动的数值模拟  

SIMULATION OF VORTEX TUBE PERFORMANCE AND THREE-DIMENSIONAL FLOW WITH STRONG SWIRL IN VORTEX TUBE

作　　者：何丽娟[1] 吴心伟 王荻 田宝云[2] 王征 王萌 He Lijuan;Wu Xinwei;Wang Di;Tian Baoyun;Wang Zheng;Wang Meng(College of Environment and Energy,Inner Mongolia University of Science and Technology,Baotou 014010,China;Department of Architectural Engineering,Baotou Iron&Steel Vocational Technical College,Baotou 014010,China;Department of Mechanical Engineering,University College London,London,United Kingdom;Process&Energy Laboratory,Delft University of Technology,Delft,Netherlands)

机构地区：[1]内蒙古科技大学能源与环境学院,包头014010 [2]包头钢铁职业技术学院建筑工程系,包头014010 [3]伦敦大学机械工程系,伦敦 [4]代尔夫特理工大学过程与能源实验室,代尔夫特

出　　处：《太阳能学报》2020年第11期143-148,共6页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51566014,51106068);内蒙古自然科学基金(2015MS0547)。

摘　　要：采用Fluent数值模拟的方法,对R41、R32、R23、R290、R134a和R1234yf进行三维数值模拟,得到工质对涡流管制冷效应、制热效应以及分离效应的影响规律,并以R41分析涡流管内部三维压力场、流场和温度场的分布规律。模拟结果表明:R41的制冷、制热以及分离效应最好,最大分离效应为5.2 K。涡流管内部呈现复杂的三维强漩流流动状态;管内漩涡流动是自由涡和强制涡的组合;内部存在顺流、逆流、循环流流动状态,冷热流体的分界点是顺流和逆流的交界处,顺流和逆流流体以循环流形式在分界点进行热量交换。The energy separation and the increase of heating effect and the decrease of cooling effect in the vortex tube with various gases,such as R41,R32,R23,R290,R134 a,R1234 yf,was studied in the numerically simulated.The pressure field and temperature field and velocity field of the vortex tube were analyzed with R41.The results show that the R41 in the vortex tube,the cold and hot performance will best,the maximum temperature difference what be between cool area and hot area is 5.2 K.The numerical results show that flow motion inside the vortex tube presents extraordinary complicated behavior;The flow inside the vortex tube exist an outer region of quasi-free vortex flow and an inner region of quasi-forced vortex flow;there are the parallel flow,reverse flow and secondary flow in the vortex tube,The interface between parallel flow and reverse flow is that the energy separation place in the vortex tube.

关 键 词：数值模拟 涡流管 强旋流 三维流场 温度场 

分 类 号：TB619[一般工业技术—制冷工程]