| 粘性和空气助力作用对液体碎裂过程的影响 |
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| 引用本文： | 曹建明,卢林春,李跟宝,苏海东.粘性和空气助力作用对液体碎裂过程的影响[J].中国西部科技,2011(31):1-3. |
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| 作者姓名： | 曹建明 卢林春 李跟宝 苏海东 |
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| 作者单位： | 长安大学汽车学院; |
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| 基金项目： | 国家自然科学基金项目(50676012) |
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| 摘 要： | 进行了静止空气环境和空气助力环境下水膜和汽油油膜射流碎裂过程试验。结果表明,对于瑞利模式液体射流,喷射压力对液体碎裂过程几乎没有直接影响,射流流速是液体碎裂过程的首要影响因素。当射流流速较低时,液体粘性和空气助力作用对液体碎裂过程的影响大体相当,液体粘度的减小和空气助力作用均能够显著缩短射流的碎裂长度,改善一级雾化的效果;当射流流速较高时,液体粘性对液体碎裂过程的影响将大于空气助力作用的影响,随着流速的提高,空气助力对液体碎裂的促进作用将大为减弱。
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| 关 键 词： | 汽车工程 液体碎裂过程 粘性 空气助力 |
The Effect of Viscosity and Air Assistant on Liquid Breakup Process |
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| CAO Jian-ming,LU Lin-chun,LI Gen-bao,SU Hai-dong.The Effect of Viscosity and Air Assistant on Liquid Breakup Process[J].Science and Technology of West China,2011(31):1-3. |
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| Authors: | CAO Jian-ming LU Lin-chun LI Gen-bao SU Hai-dong |
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| Institution: | CAO Jian-ming,LU Lin-chun,LI Gen-bao,SU Hai-dong(School of Automobile,Chang'an University,Xi'an,Shaanxi 710064) |
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| Abstract: | The water film and gasoline liquid sheet breakup process experiments have been conducted at stationary air medium and air assistant environment.The results showed that liquid breakup processes had no direct concern with injecting pressure,and primary influencing factor was liquid injecting velocities in Rayleigh spray region.The effect degrees of viscosity and air assistant on liquid breakup process were almost the same at lower liquid velocities.The liquid breakup lengths could be distinctly shorten by red... |
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| Keywords: | Automobile engineering Liquid breakup process Viscosity Air assistant |
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