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| 矩形截面管道气流中横向运动颗粒的碰壁条件 | |
| 引用本文： | 徐让书,鞠珊珊,陈晓文,杨建明,张所刚.矩形截面管道气流中横向运动颗粒的碰壁条件[J].沈阳航空工业学院学报,2012,29(2):1-4. |
| 作者姓名： | 徐让书 鞠珊珊 陈晓文 杨建明 张所刚 |
| 作者单位： | 1. 沈阳航空航天大学航空航天工程学部(院),沈阳,110136 2. 沈阳华晨汽车集团控股有限公司,沈阳,110141 3. 济南柴油机股份有限公司,济南,250306 |
| 摘 要： | 分析了矩形截面管道气流中横向运动颗粒的运动轨迹及碰壁条件，研究表明颗粒飞出的临界速度随着颗粒直径的增大而减小，当颗粒直径较小时受来流密度、马赫数影响较大，总趋势是来流密度、马赫数越大，颗粒越不容易与上壁面碰撞。但随着颗粒直径的增大，来流条件对颗粒是否碰壁的影响逐渐减弱，决定因素是颗粒直径的大小和颗粒的喷射速度。 |
| 关 键 词： | 颗粒直径 来流密度 马赫数 颗粒喷射速度 |
Impingement wall condition of sidelong moving particle in rectangle section pipe |
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| XU Rang-shu , JU Shan-shan , CHEN Xiao-wen , YANG Jian-ming , ZHANG Suo-gang.Impingement wall condition of sidelong moving particle in rectangle section pipe[J].Journal of Shenyang Institute of Aeronautical Engineering,2012,29(2):1-4. | |
| Authors: | XU Rang-shu JU Shan-shan CHEN Xiao-wen YANG Jian-ming ZHANG Suo-gang |
| Institution: | 1. Faculty of Aerospace Engineering, Shenyang Aerospace University , Shenyang 110136;2. Huachen Group Auto Holding Co. , Ltd. , Shenyang 110141 ;3. Jinan Diesel Engine Co. , Ltd. , Jinan 250306) |
| Abstract: | This paper analyses the impingement wall condition of sidelong moving particle in rectangle sec- tion pipe. It shows that the critical velocity for the particle to fly off minishes as the particle diameter increa- ses; it is affected heavily by Mach number and flow density when the particle diameter is small. The total tendency is that it is increasingly impossible for particle to collide up against the wall as the flow density and Mach number increase. With the increasing of the diameter of particle the influence of flow density and Mach number wears off, and impingement is decided by the particle diameter and particle injecting velocity. |
| Keywords: | particle diameter flow density Mach number particle injecting velocity |
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