高强化活塞振荡冷却的场协同分析

朱海荣; 张卫正; 原彦鹏

doi:10.13224/j.cnki.jasp.2015.04.001

高强化活塞振荡冷却的场协同分析

doi: 10.13224/j.cnki.jasp.2015.04.001

1. 北京理工大学机械与车辆学院, 北京 100081;
2. 河北科技大学机械工程学院, 石家庄 050018

基金项目:

国家重点基础研究发展计划(613570303)

详细信息

作者简介:
朱海荣(1979-),女,河北廊坊人,讲师,博士生,主要从事流体传热传质方面的研究.

中图分类号: V23;TK124
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- 被引次数: 0
出版历程
- 收稿日期: 2014-08-03
- 刊出日期: 2015-04-28

Field synergy analysis of highly-intensified piston oscillating cooling

1. School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China;
2. School of Mechanical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China

摘要

摘要: 数值模拟了高强化活塞内冷油腔中机油的振荡冷却过程,定义了有效速度的概念,通过数据处理得到了内冷油腔壁面的各场参数在时间和空间上的分布规律,分析了壁面表面传热系数与场协同性能间的联系.结果表明:在面相位为60°~120°和240°~300°范围内,场协同匹配性能较好;有效速度的分布规律与协同角余弦值的分布规律一致;内冷油腔壁面表面传热系数分布规律与协同角余弦值和有效速度的分布规律一致,表明可以使用场协同机理阐述机油振荡冷却的对流换热规律.
- 高强化活塞 /
- 振荡冷却 /
- 场协同机理 /
- 协同角 /
- 有效速度
Abstract: The oscillating cooling process of oil in the oil cooling gallery of highly-intensified piston was simulated numerically and the effective speed was defined. Through the post processing of data, the distributions of field parameters of oil cooling gallery wall in time and space were obtained, and the connection between wall surface heat transfer coefficient and the field synergy performance was analyzed. The results show that: the field synergy performance is good enough in the space range of 60 degree to 120 degree and 240 degree to 300 degree. Distribution rules of effective speed match well with the field synergy angle cosine value; uniform distributions of surface heat transfer coefficients of oil cooling gallery wall are in accord with the distributions of synergy angle cosine value and effective speed, illustrating that field synergy mechanism can explain the convective heat transfer rules of oil oscillating cooling.
- highly-intensified piston /
- oscillating cooling /
- field synergy mechanism /
- synergy angle /
- effective speed

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参考文献(18)

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