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| 气固轴对称射流中固粒扩散的研究 | |
| 引用本文： | 林建忠,林江,朱丽兵.气固轴对称射流中固粒扩散的研究[J].工程热物理学报,2000,21(2):234-237. |
| 作者姓名： | 林建忠 林江 朱丽兵 |
| 作者单位： | 1. 浙江大学力学系,流体传动及控制国家重点实验室,浙江,杭州,310027;杭州应用工程技术学院,浙江,杭州,310012 2. 杭州应用工程技术学院,浙江,杭州,310012 3. 浙江大学力学系,流体传动及控制国家重点实验室,浙江,杭州,310027 |
| 基金项目： | 教育部"跨世纪优秀人才培养计划"基金 |
| 摘 要： | 由三维离散涡丝方法对气固轴对称射流场数值模拟的结果表明,当固粒 Ｓｔ数＜＜１时,固粒明显受到流场运动的影响; Ｓｔ＝ １时,固粒均匀分布在涡结构周围;当 Ｓｔ ＞＞１时,固粒受流场影响较弱。对涡环沿周向施以五个波长扰动时,固粒扩散范围较宽。 |
| 关 键 词： | 气固两相轴对称射流 拟序结构 数值模拟 固粒扩散 |
| 文章编号： | 0253-231X(2000)02-0234-04 |
| 修稿时间： | 1999-10-15 |
RESEARCH ON THE PARTICLE DISPERSION IN THE PARTICULATE AXISYMMETRIC JET |
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| LIN Jianzhong,LIN Jiang,ZHU Libing.RESEARCH ON THE PARTICLE DISPERSION IN THE PARTICULATE AXISYMMETRIC JET[J].Journal of Engineering Thermophysics,2000,21(2):234-237. | |
| Authors: | LIN Jianzhong LIN Jiang ZHU Libing |
| Institution: | LIN Jianzhong (Department of Mechanics, the State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Zhejiang Hangzhou 310027, China; Hangzhou Institute of Applied Engineering, Zhejiang Hangzhou 310012, China)LIN Jiang (Hangzhou Institute of Applied Engineering, Zhejiang Hangzhou 310012, China)ZHU Libing (Department of Mechanics, the State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Zhejiang Hangzhou 310027, China) |
| Abstract: | The three-dimensional discrete vortex filament method was used to simulate the particulate two-phase axisymmetric jet. The results show that the particle motion is affected by gas obviously at the case of particle Stokes number <<1 and negligibly at Stokes number >>1, particles distribute around the vortex structures uniformly at St = 1. When perturbations with wavenumber 5 are introduced to vortex rings, particles disperse wider along radial direction. |
| Keywords: | gas-particle two-phase axisymmetric jet coherent structure numerical simulation particle dispersion |
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