Purpose

The purpose of this paper is to investigate the effect of slip position on the performance of liquid film seal.

Design/methodology/approach

A mathematical model of liquid film seal with slip/no-slip surface was established based on the Navier slip model and JFO boundary condition. Liquid film governing equation was discretized by the finite difference method and solved by the SOR relaxation iterative algorithm and the effects of slip position on sealing performance are discussed.

Findings

The results indicate that boundary slip plays an important role in the overall performance of a seal and a reasonable arrangement of slip position can improve the steady-state performance of liquid film seal.

Originality/value

Based on the mathematical model, the optimal parameters for liquid film seal with boundary slip at groove are obtained. The results presented in this study are expected to provide a theoretical basis to improve the design method of liquid film seal.

Peer review

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-03-2020-0082/

中文翻译：

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滑动位置对液膜密封件流体力学性能的影响

目的

本文的目的是研究滑动位置对液膜密封性能的影响。

设计/方法/方法

基于Navier滑移模型和JFO边界条件，建立了具有滑移/无滑移表面的液膜密封的数学模型。通过有限差分法离散液膜控制方程，并通过SOR松弛迭代算法求解，讨论了滑动位置对密封性能的影响。

发现

结果表明，边界滑移在密封的整体性能中起着重要的作用，滑移位置的合理安排可以改善液膜密封的稳态性能。

创意/价值

基于数学模型，获得了在槽处具有边界滑移的液膜密封的最佳参数。本研究结果有望为改进液膜密封设计方法提供理论依据。

同行评审

本文的同行评审历史记录可在以下网址获得：https://publons.com/publon/10.1108/ILT-03-2020-0082/