| 用紊流卷吸燃烧模型计算研究点火时刻紊流参数对燃烧循环的影响 |
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| 引用本文： | 马凡华,陈淑萍,蒋德明. 用紊流卷吸燃烧模型计算研究点火时刻紊流参数对燃烧循环的影响[J]. 内燃机工程, 1994, 0(4) |
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| 作者姓名： | 马凡华 陈淑萍 蒋德明 |
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| 作者单位： | 西安交通大学内燃机教研室!西安市710049(马凡华)，西安交通大学(陈淑萍，蒋德明) |
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| 摘 要： | 利用准维紊流卷吸燃烧模型计算研究了点火时刻气缸内紊流参数的变化对汽油机燃烧循环变动的影响。结果表明，点火时刻紊流强度u′及紊流长度积分标尺L的变动对汽油机燃烧循环变动均有很大影响，增大u′或L均有利于加快燃烧速度及火焰传播速度，缩短火焰发展期；u′或L的变动加大，燃烧循环变动也随之加大，其中，u′对燃烧循环变动的影响尤其大。
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| 关 键 词： | 燃烧 模型 紊流 循环 汽油机 |
A Study on Effect of Variation of Turbulence Characteristics at Spark Ignited Time on the Cyclic Combustion |
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| Ma Fanhua, Chen Suping, Jiang Deming. A Study on Effect of Variation of Turbulence Characteristics at Spark Ignited Time on the Cyclic Combustion[J]. Chinese Internal Combustion Engine Engineering, 1994, 0(4) |
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| Authors: | Ma Fanhua Chen Suping Jiang Deming |
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| Affiliation: | Xi'an Jiaotong University |
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| Abstract: | This paper has studied the effect of variation of in-cylinder turbulence Characteristies at spark ignited time on the cyclic combustion variation for spark ignition engine using turbulent entrainment combustion model. It verifies that the valiations of both turbulence intensity u' and the turbulence integral length scale L have Iarge effect on the cyclic combustion variation for spark ignition engine, and increasing u' and L is helpful to speed up combustion rate and flame propagation velocity,and decreases the flame development period. With the increase of u' and L variations,the cyclic combustion variation is also increased,rand especially the effect of u' on the Cyclic combustion variation is more significant. |
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| Keywords: | Combustion Model Turbulence Cycle Gasoline Engine |
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