Study on Aeration for Disengaged Wet Clutches Using a Two-Phase Flow Model

被引：30

作者：

Yuan, Shihua ^{[1
]}

Guo, Kai ^{[1
]}

Hu, Jibin ^{[1
]}

Peng, Zengxiong ^{[1
]}

机构：

[1] Beijing Inst Technol, Natl Key Lab Vehicular Transmiss, Beijing 100081, Peoples R China

来源：

JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME | 2010年 / 132卷 / 11期

关键词：

two-phase flow; CFD; aeration; flow pattern; drag torque; wet clutch;

D O I：

10.1115/1.4002874

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The existing computational models for disengaged wet clutches are deduced based on the single-phase flow theory. However, the complex gas-liquid two-phase flow is formed due to aeration at high rotational speeds. The objective of this study is to use a two-phase flow model to demonstrate the aeration process at different rotational speeds not only of the friction plate but also of the separator plate. A nongrooved, steady-state, two-phase flow computational fluid dynamics model is built using FLUENT, and it is validated by experimental data. The results reveal that air enters the clearance at a critical rotational speed, which causes the drag torque to sharply decrease. The aeration mode and flow pattern are obtained via simulations. The rotational speed of the separator plate has a significant effect on the aeration, including the speed magnitude and direction. [DOI: 10.1115/1.4002874]

引用

页码：111304 / 1

页数：6

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