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.
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e-mail: guokai@bit.edu.cn
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November 2010
Research Papers
Study on Aeration for Disengaged Wet Clutches Using a Two-Phase Flow Model
Shihua Yuan,
Shihua Yuan
National Key Laboratory of Vehicular Transmission,
Beijing Institute of Technology
, Beijing 100081, China
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Kai Guo,
Kai Guo
National Key Laboratory of Vehicular Transmission,
e-mail: guokai@bit.edu.cn
Beijing Institute of Technology
, Beijing 100081, China
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Jibin Hu,
Jibin Hu
National Key Laboratory of Vehicular Transmission,
Beijing Institute of Technology
, Beijing 100081, China
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Zengxiong Peng
Zengxiong Peng
National Key Laboratory of Vehicular Transmission,
Beijing Institute of Technology
, Beijing 100081, China
Search for other works by this author on:
Shihua Yuan
National Key Laboratory of Vehicular Transmission,
Beijing Institute of Technology
, Beijing 100081, China
Kai Guo
National Key Laboratory of Vehicular Transmission,
Beijing Institute of Technology
, Beijing 100081, Chinae-mail: guokai@bit.edu.cn
Jibin Hu
National Key Laboratory of Vehicular Transmission,
Beijing Institute of Technology
, Beijing 100081, China
Zengxiong Peng
National Key Laboratory of Vehicular Transmission,
Beijing Institute of Technology
, Beijing 100081, ChinaJ. Fluids Eng. Nov 2010, 132(11): 111304 (6 pages)
Published Online: November 17, 2010
Article history
Received:
November 20, 2009
Revised:
October 7, 2010
Online:
November 17, 2010
Published:
November 17, 2010
Citation
Yuan, S., Guo, K., Hu, J., and Peng, Z. (November 17, 2010). "Study on Aeration for Disengaged Wet Clutches Using a Two-Phase Flow Model." ASME. J. Fluids Eng. November 2010; 132(11): 111304. https://doi.org/10.1115/1.4002874
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