| 增压中冷柴油机缸盖水套CFD分析 |
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| 引用本文： | 毕玉华,雷基林,王贵勇,徐劲松,林玉珍.增压中冷柴油机缸盖水套CFD分析[J].拖拉机与农用运输车,2010,37(3):71-73,76. |
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| 作者姓名： | 毕玉华 雷基林 王贵勇 徐劲松 林玉珍 |
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| 作者单位： | 昆明理工大学,内燃机省级重点实验室,昆明,650224 |
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| 基金项目： | 云南省科技强省计划项目，云南省自然科学基金资助项目，昆明市重点科技项目 |
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| 摘 要： | 对增压中冷柴油机气缸盖冷却水套进行了三维CFD数值模拟,对冷却水套入口流量以及特征点的温度、压力进行测试,为CFD计算提供了准确的边界条件。研究结果表明:气缸盖冷却水套中流速和换热系数均能满足冷却要求,4缸附近的流速相对于其他各缸要小一些;进入气缸盖冷却水套各缸的流量不太均匀,主要原因是大量的冷却水直接从1缸流入气缸盖,这样很容易造成其它缸冷却能力不足,故该气缸盖局部结构需进一步优化处理。
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| 关 键 词： | 柴油机 气缸盖 水套 CFD分析 |
CFD Analysis on Cylinder Head Water Jacket of Turbocharged Inter-cooled Diesel Engine |
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| BI Yu-hua,LEI Ji-lin,WANG Gui-yong,XU Jin-song,LIN Yu-zhen.CFD Analysis on Cylinder Head Water Jacket of Turbocharged Inter-cooled Diesel Engine[J].Tractor & Farm Transporter,2010,37(3):71-73,76. |
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| Authors: | BI Yu-hua LEI Ji-lin WANG Gui-yong XU Jin-song LIN Yu-zhen |
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| Abstract: | The three-dimensional CFD numerical simulation of the cooling water jacket about the super-charging inter-cooled diesel engine is carried on with the AVL FIRE.The temperature and pressure on characteristic points of cooling water jacket in cylinder head and the mass flow of cooling water jacket at entrance are tested to provide the accurate boundary conditions for the CFD calculation.The results indicate that the flow speed and the heat transfer coefficient of cooling jacket in the cylinder head can satisfy the cooling requirement,the flow speeds nearby the forth cylinder are less than others;the mass flows of the cooling jackets are unequally,there are massive cooling water entering from the first cylinder to cylinder head directly which will lead to the other cylinders' insufficient cooling.So the further optimization is required to the partial structures of cylinder head. |
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| Keywords: | Diesel engine Cylinder head Cooling water jacket CFD analysis |
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