Influence of power-law fluid on transient performance of liquid film seal based on the time-dependent non-Newtonian dynamic Reynolds equation
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Influence of power-law fluid on transient performance of liquid film seal based on the time-dependent non-Newtonian dynamic Reynolds equation
- 发表刊物：
- Tribology International
- 摘要：
- The effects of lubricant’s non-Newtonian property on dynamic characteristics of spiral groove liquid film seal are
presented in this paper. The modified dynamic Reynolds equation for non-Newtonian fluid is derived, which is
solved simultaneously with the kinematic equation. The transient response to the rotor’s axial runout and
angular misalignment, such as the axial and angular movement of stator ring, the transient film thickness, are
presented for different power-law indexes, as well as the transient performance parameters. The results indicate
that the seal has larger film thickness under the lubrication condition with dilatant lubricant while the stator ring
has better tracking property operating with shear-thinning lubricant. Overall, the non-Newtonian property
should be considered in the design of liquid film seal.
- 合写作者：
- Wang Yunlei, Jiu Hui Wu, and Lushuai Xu
- 卷号：
- Vol.159,
- 页面范围：
- 106984 (10 Pages), 2021
- 是否译文：
- 否
- 发表时间：
- 2021-02-21