| A bulk-flow analysis of static and dynamic characteristics of floating ring seals | |
| Duan, Wenbo ; Chu, Fulei ; Kim, Chang-Ho ; Lee, Yong-Bok | |
| 2010-05-10 ; 2010-05-10 | |
| 关键词 | floating ring seals bulk flow analysis static and dynamic characteristics HIGH-PRESSURE ROTORDYNAMIC COEFFICIENTS LEAKAGE Engineering, Mechanical |
| 中文摘要 | The bulk-flow model was used to calculate the static and the dynamic characteristics of floating ring seals because the solutions based on the numerical integration of the complete Navier-Stokes equations can be very time consuming. A steepest-descent method is used to find the seal's equilibrium position efficiently. The bulk-flow model is governed by three partial differential equations on eccentric working conditions. A finite-difference scheme has been used to solve the nonlinear governing equations. Compared to Nelson and Nguyen's fast fourier transform method, this scheme has better consistency. Perturbation analysis of the flow variables yields a set of zeroth and first-order equations. The SIMPLE algorithm is used to integrate the system of bulk-flow equations. Comparisons of the numerical predictions (lock-up eccentricity ratio, leakage flow rate and rotordynamic coefficients) with Ha's results, which were formulated using the Fourier series, and experimental data are presented subsequently. (c) 2006 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 ; 英语 |
| 出版者 | ELSEVIER SCI LTD ; OXFORD ; THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/24882]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | Duan, Wenbo,Chu, Fulei,Kim, Chang-Ho,et al. A bulk-flow analysis of static and dynamic characteristics of floating ring seals[J],2010, 2010. |
| APA | Duan, Wenbo,Chu, Fulei,Kim, Chang-Ho,&Lee, Yong-Bok.(2010).A bulk-flow analysis of static and dynamic characteristics of floating ring seals.. |
| MLA | Duan, Wenbo,et al."A bulk-flow analysis of static and dynamic characteristics of floating ring seals".(2010). |
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