计算流体力学在摩托车发动机冷却风扇设计中的应用

江荧

计算流体力学在摩托车发动机冷却风扇设计中的应用

江荧^1,2

1.
南京航空航天大学能源与动力学院, 南京 210016;
2.
芜湖职业技术学院机械工程系, 芜湖 241006

基金项目:

安徽省省级自然科学研究项目(KJ2013B349)资助.

详细信息

作者简介:
江荧(1976-),副教授,省级专业带头人,硕士,研究方向为材料成形和CAD/CAM技术,teacherjy@sina.com

计量
- 文章访问数: 200
- HTML全文浏览量: 27
- PDF下载量: 8
- 被引次数: 0
出版历程
- 收稿日期: 2012-06-10
- 刊出日期: 2015-06-10

Applying CFD to Designing Cooling Fan of Motorcycle Engine

Jiang Ying^1,2

1.
College of Energy and Power, Nanjing University of Aeronautics and Astronautics, Nanjing 210016;
2.
Department of Mechanical Engineering, Wuhu Institute of Technology, Wuhu 241006

摘要

摘要: 运用CFD(computational fluid dynamics)商业软件CFX对某型摩托车发动机冷却风扇内的气流流动进行数值模拟, 发现原始叶片设计的缺陷, 并通过改变叶片形状对原始风扇进行了优化设计。数值分析表明:在不改变曲轴的转速下, 风扇的风量和效率均得到提高。对流过汽缸后的气体温度进行对比测量显示, 改进的冷却风扇使该处的气体平均温度降低1.5℃, 改善了摩托车发动机的冷却效果。
- 传热 /
- 流体动力学 /
- 冷却风扇 /
- 数值模拟 /
- 改进设计
Abstract: The CFD (computational fluid dynamics) commercial software CFX was used to numerically simulate the air flow in the cooling fan of a certain type of motorcycle engine in order to discover the defects of original blade design and to carry out the optimal design of the cooling fan by changing its blade shape. The numerical simulation shows that, without changing the speed of the crankshaft of the motorcycle engine, our new design can improve the air volume and efficiency of the cooling fan. The comparison of the measured temperature of air that flows throughthe cylinder reveals that the improved design of the cooling fan lowers the average temperature at the cylinder by 1.5 ℃, thus achieving the purpose of enhancing the cooling effect of a motorcycle engine.
- boundary conditions /
- calculations /
- computational fluid dynamics /
- computer simulation /
- computer software

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参考文献(8)

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