| T型槽干气密封内微流动特性的数值计算 |
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| 引用本文： | 李仁年,沈建锋,韩伟,李琪飞,李德顺,丁雪兴.T型槽干气密封内微流动特性的数值计算[J].兰州理工大学学报,2009,35(5). |
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| 作者姓名： | 李仁年 沈建锋 韩伟 李琪飞 李德顺 丁雪兴 |
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| 作者单位： | 1. 兰州理工大学,能源与动力工程学院,甘肃,兰州,730050
2. 兰州理工大学,石油化工学院,甘肃,兰州,730050 |
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| 基金项目： | 甘肃省自然科学基金，兰州理工大学"学术梯队及特色研究方向重点资助计划" |
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| 摘 要： | 在N-S方程的基础上,考虑微尺度效应对干气密封内部流动的影响,推导出T型槽内气体稳态流场的非线性运动方程.应用有限差分思想,将非线性偏微分方程通过迭代增量线性化方法转化为线性代数方程组,通过迭代进行数值求解,获得T型槽内气体的速度分布和压力分布,近似求得不同气膜厚度时T型槽内气体泄露量和开启力分布.计算结果和其他文献中的实验结果基本符合,证明该理论分析方法在干气密封系统优化设计的可行性.
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| 关 键 词： | T型槽 干气密封 微槽流动 数值计算 性能 |
Numerical evaluation of micro-channel flow characteristics in T-groove dry gas seal |
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| LI Ren-nian,SHEN Jian-feng,HAN Wei,LI Qi-fei,LI De-shun,DING Xue-xing.Numerical evaluation of micro-channel flow characteristics in T-groove dry gas seal[J].Journal of Lanzhou University of Technology,2009,35(5). |
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| Authors: | LI Ren-nian SHEN Jian-feng HAN Wei LI Qi-fei LI De-shun DING Xue-xing |
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| Institution: | LI Ren-nian1,SHEN Jian-feng1,HAN Wei1,LI Qi-fei1,LI De-shun1,DING Xue-xing2(1.College of Energy and Power Engineering,Lanzhou Univ.of Tech.,Lanzhou 730050,China,2.College of Petrochemical Technology,China) |
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| Abstract: | Based on Navier-Stokes equation and considering the effect of micro-scale flow on the interior flow field in dry gas seals a nonlinear motion equation was derived for a stationary flow field in T-groove.By using finite-difference method,the nonlinear partial differential equation was transformed into the linear algebraic equation group by iterative increment linearization method.The pressure distribution and velocity field in T-groove dry gas seal was obtained with numerical calculation.The approximate gas ... |
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| Keywords: | T-groove dry gas seal micro-channel flow numerical calculation performance |
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