| 关于喷雾流动蒸发燃烧的数值模拟研究 |
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| 引用本文： | 曹晓辉,范秦寅,袁银男,姜树李,郭晨海.关于喷雾流动蒸发燃烧的数值模拟研究[J].内燃机工程,2011,32(2). |
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| 作者姓名： | 曹晓辉 范秦寅 袁银男 姜树李 郭晨海 |
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| 作者单位： | 1. 江苏大学汽车与交通工程学院,镇江,212013
2. 日本大阪大学大学院工学部研究科,大阪,565-0871 |
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| 摘 要： | 采用欧拉气相方程和拉格朗日液滴方程,同时耦合化学反应,对喷雾流动、蒸发、燃烧进行模拟,分析了喷雾液滴的分布、液滴贯穿距离、索特平均直径、放热率等。通过与试验结果的对比表明:计算能很好地预测蒸发和非蒸发喷雾的油滴贯穿距离以及燃料蒸气的贯穿距离;高温高压下喷雾的自燃着火,燃烧迅速扩散。对计算结果的分析表明:高温高压下容易产生二次破裂;在火焰前锋附近,局部放热量大,产生了预混燃烧,而喷雾液核区域的燃油燃烧是由湍流扩散控制的。
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| 关 键 词： | 内燃机 喷雾 蒸发 燃烧 数值模拟 |
Numerical Simulation of Flow,Evaporation and Combustion in Spray |
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| CAO Xiao-hui,FAN Qin-yin,YUAN Yin-nan,JIANG Shu-li,GUO Chen-hai.Numerical Simulation of Flow,Evaporation and Combustion in Spray[J].Chinese Internal Combustion Engine Engineering,2011,32(2). |
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| Authors: | CAO Xiao-hui FAN Qin-yin YUAN Yin-nan JIANG Shu-li GUO Chen-hai |
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| Affiliation: | CAO Xiao-hui1,FAN Qin-yin2,YUAN Yin-nan1,JIANG Shu-li1,GUO Chen-hai1(1.School of Automobile and Traffic Engineering,Jiangsu University,Zhenjiang 212013,China,2.School of Engineering,Osaka University,Osaka 5650871,Japan) |
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| Abstract: | The Eulerian gas formulation and Lagrangian drop formulation coupled with chemical reactions were used to simulate flow,evaporation and combustion in the spray to analyze the drop dispersion,spray penetration,Sauter mean diameter(SMD) and heat release rate,etc..Comparing the computed results with experiment data indicates that computations can well predict spray penetration of non-evaporating spray drop penetration and evaporating spray vapor penetration,spray ignition and rapid spread of combustion in high... |
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| Keywords: | IC engine spray evaporation combustion numerical simulation |
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