| 气口参数对二冲程重油发动机扫气性能的影响 |
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| 引用本文： | 杜发荣,蒋彬.气口参数对二冲程重油发动机扫气性能的影响[J].科学技术与工程,2011,11(3):528-532. |
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| 作者姓名： | 杜发荣 蒋彬 |
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| 作者单位： | 北京航空航天大学交通科学与工程学院,北京,100191 |
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| 摘 要： | 利用三维计算流体力学(CFD)软件Fluent对航空用二冲程重油发动机的扫气过程进行模拟。研究气口仰角、流通面积及开启时刻对与发动机容积效率和扫气损失的影响。在保证发动机容积效率的前提下尽可能地减小扫气损失,并推迟排气口的开启时刻。以发动机整机性能最优为目标,确定最佳的气口参数组合,为发动机整机设计提供理论依据。
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| 关 键 词： | 二冲程 重油发动机 气口参数 数值模拟 扫气泵 |
| 收稿时间： | 2010/11/2 0:00:00 |
| 修稿时间： | 11/9/2010 5:26:27 PM |
The Influences of Ports' Parameters on Scavenging Properties of Two-stroke HFE |
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| Du Farong and.The Influences of Ports' Parameters on Scavenging Properties of Two-stroke HFE[J].Science Technology and Engineering,2011,11(3):528-532. |
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| Authors: | Du Farong and |
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| Institution: | DU Fa-rong,JIANG Bin(School of Transportation Science and Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100191,P.R.China) |
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| Abstract: | Multi-dimensional computational fluid dynamics(CFD)software Fluent was used to simulate the scavenging process of a two-stroke HFE(heavy fuel engine).The influences of ports' parameters,such as ports' angle,the area of the ports,open timing,on scavenging properties was analyzed.In order to reach the best engine performance,limit the scavenging loss,and delay the opening time of the exhaust ports.The optimized ports' parameters provide a theoretical basis for the engine design. |
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| Keywords: | two-stroke HFE ports' parameters numerical simulation supercharger |
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