| 柴油机气缸盖传热规律研究 |
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| 引用本文： | 郭良平,张卫正,王长园,赵维茂.柴油机气缸盖传热规律研究[J].北京理工大学学报,2011,31(3):277-282. |
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| 作者姓名： | 郭良平 张卫正 王长园 赵维茂 |
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| 作者单位： | 北京理工大学机械与车辆学院; |
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| 基金项目： | 国家“九七三”计划项目(613570303) |
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| 摘 要： | 利用Star CCM+软件,采用多面体网格技术和基于流体体积函数方法(VOF)的两相流沸腾模型,对单缸柴油机气缸盖的冷却传热进行了流-固耦合仿真计算,通过气缸盖的测试温度对仿真结果进行了校验.在此基础上,对气缸盖的传热规律进行了研究.研究表明,单缸柴油机负荷增加时,气缸盖冷却水壁面排气门鼻梁区的传热系数HTC呈现出在较小负荷增加迅速,在较大负荷增加变缓的规律;气缸盖向冷却水传递的热流量则随单缸柴油机负荷的提高呈现出加速上升的趋势,转速为2 000r.min-1时,单缸柴油机功率由44kW增加到61kW,气缸盖传递给冷却水的热流量增幅为31.4%;功率由61kW增加到80kW,气缸盖传递给冷却水的热流量增幅为61.3%.
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| 关 键 词： | 气缸盖 沸腾传热 多面体网格 流体体积函数方法(VOF) |
| 收稿时间： | 9/6/2010 12:00:00 AM |
Heat Transfer Investigation on a Diesel Engine Cylinder Head |
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| GUO Liang-ping,ZHANG Wei-zheng,WANG Chang-yuan and ZHAO Wei-mao.Heat Transfer Investigation on a Diesel Engine Cylinder Head[J].Journal of Beijing Institute of Technology(Natural Science Edition),2011,31(3):277-282. |
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| Authors: | GUO Liang-ping ZHANG Wei-zheng WANG Chang-yuan and ZHAO Wei-mao |
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| Institution: | GUO Liang-ping,ZHANG Wei-zheng,WANG Chang-yuan,ZHAO Wei-mao(School of Mechanical Engineering,Beijing Institute of Technology,Beijing 100081,China) |
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| Abstract: | Employing the polyhedral grid technique and based on the volume of fluid(VOF) two-phase flow boiling model,the heat transfer simulation of fluid-structure interaction for a diesel engine cylinder head was accomplished using Star CCM+ software.The tested temperature of the cylinder head proved the validation of simulation results.Then,the heat transfer regularity of the cylinder head was studied.The results show that,when the load of the single cylinder diesel engine increases,the heat transfer coefficient(H... |
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| Keywords: | cylinder head boiling heat transfer polyhedral grid volume of fluid(VOF) |
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