On the boundary conditions in multi-phase flow through the piston ring-cylinder liner conjunction

被引：52

作者：

Shahmohamadi, H. ^{[1
]}

Mohammadpour, M. ^{[1
]}

Rahmani, R. ^{[1
]}

Rahnejat, H. ^{[1
]}

Garner, C. P. ^{[1
]}

Howell-Smith, S. ^{[2
]}

机构：

[1] Univ Loughborough, Wolfson Sch Mech & Mfg Engn, Loughborough LE11 3TU, Leics, England

[2] Capricorn Automot Ltd, Basingstoke, Hants, England

来源：

TRIBOLOGY INTERNATIONAL | 2015年 / 90卷

基金：

英国工程与自然科学研究理事会;

关键词：

Mixed multi-phase regime of lubrication; Zero reverse inlet boundary; Cavitation; Friction; LUBRICATION; TRIBOLOGY; FRICTION; REGIME; FILM;

D O I：

10.1016/j.triboint.2015.04.025

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Prediction of load capacity and friction depends on the assumed boundary conditions. The inlet comprises swirl and counter flows, admitting only a portion of the inward flow into the conjunctional gap. At the contact exit, the lubricant film ruptures with multi-phase flow through a cavitation region. Therefore, the boundary conditions affect the load carrying capacity and friction. A Navier-Stokes solution of multi-phase flow, including vapour transport is presented, with determined realistic boundary conditions. The evaluated boundaries agree with potential flow analysis satisfying compatibility conditions, not hitherto reported in literature. The investigation is extended to the determination of optimum compression ring contacting geometry. (C) 2015 The Authors. Published by Elsevier Ltd.

引用

页码：164 / 174

页数：11

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