| 燃烧室部件传热空间非均匀性对缸内燃烧的影响 |
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| 引用本文： | 吕继组,白敏丽,李晓杰. 燃烧室部件传热空间非均匀性对缸内燃烧的影响[J]. 工程热物理学报, 2010, 0(12) |
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| 作者姓名： | 吕继组 白敏丽 李晓杰 |
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| 作者单位： | 大连理工大学工程力学系;大连理工大学能源与动力学院; |
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| 基金项目： | 国家自然科学基金资助项目(No.50576008;No.50876016); 辽宁省自然科学基金资助项目(No.20062180) |
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| 摘 要： | 将所有燃烧室部件(气缸盖-气缸套-活塞组-润滑油膜)作为一个耦合体,在对耦合体进行三维传热数值模拟的基础上,利用分区求解、边界耦合法建立缸内工作过程与燃烧室部件的三维耦合计算模型,从而实现缸内工作过程与燃烧室部件的耦合三维仿真模拟,以此考察燃烧室部件传热空间非均匀性对缸内燃烧的影响。研究结果表明,燃烧室部件传热空间非均匀性在喷雾过程几乎对燃烧没有任何影响,可以忽略不计;燃烧过程后期,这种传热空间非均匀性才越来越明显,由此可以推断,燃烧室部件传热空间非均匀性的影响在排气过程将进一步加剧。
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| 关 键 词： | 柴油机 传热 空间非均匀性 燃烧 缸内 |
EFFECT OF HEAT TRANSFER SPACE NON-UNIFORMITY OF COMBUSTION CHAMBER COMPONENTS ON IN-CYLINDER COMBUSTION IN DIESEL ENGINE |
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| Affiliation: | Lü Ji-Zu~1 BAI Min-Li~2 LI Xiao-Jie~1 (1.Department of Engineering Mechanics,Dalian University of Technology,Dalian 116024,China,2.School of Energy and Power Engineering,China) |
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| Abstract: | Combustion chamber components(cylinder head-cylinder liner-piston assembly-oil film) were treated as a coupled body.Based on the three-dimensional numerical simulation of heat transfer of the coupled body a coupled three-dimensional calculation model for the in-cylinder working process and the combustion chamber components was built with domain decomposition and boundary coupling method,which adopts the coupled three-dimensional simulation of in-cylinder working process and the combustion chamber components... |
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| Keywords: | diesel engine heat transfer space non-uniformity combustion in-cylinder |
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