摘要
采用三维流动求解器CFD-ACE+,以空气作为工作介质,对干气密封不同工况下的内部微间隙三维流场进行了数值模拟,得到了流场的压力分布及其产生的开启力,通过与文献中试验结果的比较和分析,三维流场的计算结果与文献中试验结果吻合较好。在考虑气体的可压缩性的情况下,直接求解N-S方程可对干气密封微间隙内的三维流场进行正确的描述。
The numerical simulation of 3D flow in spiral grooved gas seals for different operation statuses are made by using the 3D flow solver CFD-ACE＋. The pressure distribution and the opening force are obtained. The comparison between the numerical results and the experimental results in the literature is made and they agreed well with each other, which indicates that the flow-field in dry gas seals can be described properly by solving N-S equations directly when gas compressibility is taken into account.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2007年第1期55-57,共3页
Journal of Engineering Thermophysics
基金
国家自然科学基金项目(No.50276034)
关键词
数值模拟
干气密封
微间隙
numerical simulation
spiral grooved gas seals
micro-clearance
