| 用速度浓度同步测量系统研究瞬态气体撞壁射流混合过程 |
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| 引用本文： | 谢辉,苏万华,史绍熙,林荣文.用速度浓度同步测量系统研究瞬态气体撞壁射流混合过程[J].工程热物理学报,1996(4). |
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| 作者姓名： | 谢辉 苏万华 史绍熙 林荣文 |
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| 作者单位： | 天津大学内燃机燃烧学国家重点实验室 |
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| 摘 要： | 用速度浓度同步测量系统研究瞬态气体撞壁射流混合过程谢辉，苏万华，史绍熙，林荣文（天津大学内燃机燃烧学国家重点实验室天津３０００７２）关键词撞壁射流，射流混合，速度浓度同步测量１引言对于中小型直喷式柴油机，燃油喷雾与壁面撞击不可避免，研究喷雾和壁面的相...
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| 关 键 词： | 撞壁射流，射流混合，速度浓度同步测量 |
STUDY ON TRANSIENT MIXING PROCESS OF GAS JET IMPINGEMENT BY SIMULTANEOUS MEASUREMENT SYSTEM OF VELOCITY AND CONCENTRATION |
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| XIE Hui,SU Wanhua, SHI Shaoxi, LIN Rongwen.STUDY ON TRANSIENT MIXING PROCESS OF GAS JET IMPINGEMENT BY SIMULTANEOUS MEASUREMENT SYSTEM OF VELOCITY AND CONCENTRATION[J].Journal of Engineering Thermophysics,1996(4). |
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| Authors: | XIE Hui SU Wanhua SHI Shaoxi LIN Rongwen |
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| Abstract: | The effects of jet impingement and turbulence structure on jet mixing rate are investigated by using a simultaneous measurement system of concentration and velocity.It is found that, after the end of injection,dispersion of momentum of a CO2 jet is much faster than that of concentration.The residual gas is then left in a rather quiescent atmosphere,that makes a sluggish miking process of the residual gas. Jet impingement can create intensive air motion in the near impingement region, that promotes the mixing of the residual gas in the region.However,the effect of jet impingement decreases as the distance from the impingement point increases. |
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| Keywords: | jet impingement jet mixing simultaneous measurement of velocity and concentration |
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