Simulation of flow field and temperature field for mechanical seal cavity
Sun Zegang1,2,Huang Wenquan1,2
(1.Sichuan Provincial Key Lab of Process Equipment and Control,Zigong,Sichuan 643000,China;2.Sichuan University of Science and Engineering,Zigong,Sichuan 643000,China)
Abstract： In oder to understand the distribution of temperature and pressure in a mechanical seal cavity,Fluent software was used to carry out a numerical simulation on temperature and pressure.Based on Navier-Stokes equations and the standard turbulent model,the temperature and flow fields for a mechanical seal ring were simulated.The results prove that the temperature in the mechanical seal cavity has little change and the temperature on the mechanical seal wall has greater change.The velocity near the meachanical seal wall is slower than that in cavity.The velocity distribution is linear and continual.The plot of pressure is nearly balanced at axis.There is a partical pressure change when the area of the cross section of the mechanical seal cavity changes suddenly.By comparing the calculated results with that from experiment,the error range is about 6% to 17.5%,which is coincident with the actual situation.It shows that numerical simulation can be carried out on the visual calculation for the invisible change in the flow field.
孙泽刚， 黄文权. 机械密封密封腔的流场及温度场[J]. 排灌机械工程学报, 2009, 27(3): 200-203.
Sun Zegang,Huang Wenquan. Simulation of flow field and temperature field for mechanical seal cavity. Journal of Drainage and Irrigation Machinery Engin, 2009, 27(3): 200-203.
[1]陈卓如.工程流体力学[M].北京:高等教育出版社,2004.[2]李琪飞,李仁年,韩伟,等.蜗壳内部含沙水两相流动的CFD模拟分析[J].排灌机械,2007,25(5):61-64.Li Qifei,Li Rennian,Han Wei,et al.CFD simulation of sand-water two-phase inner flow field of volute[J].Drainage and Irrigation Machinery,2007,25(5):61-64.(in Chinese)[3]龙志军,裴毅,杨晓珍,等.离心泵叶轮内部湍流流场的数值模拟[J].排灌机械,2005,23(2):8-10.Long Zhijun,Pei Yi,Yang Xiaozhen,et al.Numerical simulation of turbulent flow inside impeller of centrifugal pump[J].Drainage and Irrigation Machinery,2005,23(2):8-10.(in Chinese)[4]韩占忠,王敬,兰小平.Fluent:流体工程仿真计算实例与应用[M].北京:北京理工大学出版社,2008.[5]王瑞金,张凯,王刚.Fluent技术基础与应用实例[M].北京:清华大学出版社,2007.[6]杨青,陈东祥,胡冬梅.基于Pro/Engineer的三维零件模型的参数化设计[J].机械设计,2006,23(9):53-56.Yang Qing,Chen Dongxiang,Hu Dongmei.Parameterized design of 3D component model based on Pro/Engineering[J].Journal of Machine Design,2006,23(9):53-56.(in Chinese)[7]赵斌娟,袁寿其,刘厚林,等.双流道泵叶轮内贴体网格生成与CFD分析[J].排灌机械,2008,26(2):10-14.Zhao Binjuan,Yuan Shouqi,Liu Houlin,et al.Body-fitted grid generation in double-channel pump impeller and CFD analysis[J].Drainage and Irrigation Machinery,2008,26(2):10-14.(in Chinese)
