| 基于雷诺应力模型的脱油旋流器流场特性研究 |
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| 引用本文： | 赵立新,崔福义,蒋明虎,朱宝军. 基于雷诺应力模型的脱油旋流器流场特性研究[J]. 化学工程, 2007, 35(5): 32-35 |
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| 作者姓名： | 赵立新 崔福义 蒋明虎 朱宝军 |
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| 作者单位： | 哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090;大庆石油学院机械科学与工程学院,黑龙江大庆163318 |
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| 基金项目： | 中国博士后基金资助项目(2005038194)，黑龙江省博士后基金资助项目(LBH-Z05121)，黑龙江省教育厅科学技术研究资助项目(10551016) |
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| 摘 要： | 采用雷诺应力模型(RSM)对油水分离用水力旋流器进行了数值模拟,模拟出了循环流和短路流现象,得到了内部流场的轴向速度、径向速度和切向速度的分布规律;模拟结果与实验结果吻合较好,说明该湍流模型和计算方法的选取是正确的;另外,针对油相体积分数为2%,油滴粒径为40μm的混合介质进行分析,得出了油水二相的体积分数分布。在旋流器的轴心处油相体积分数最大,最大处混合介质中含油体积分数高达98.9%;在壁面附近体积分数很小,说明该水力旋流器的分离效果较好。通过数值模拟为进一步研究水力旋流器内部流场的分布和结构优化设计奠定了基础。
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| 关 键 词： | 雷诺应力模型 液液水力旋流器 流场 数值模拟 |
| 文章编号： | 1005-9954（2007）05-0032-04 |
Study on the characteristics of flow field inside de-oiling hydrocyclone based on Reynolds stress model |
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| ZHAO Li-xin,CUI Fu-yi,JIANG Ming-hu,Zhu Bao-jun. Study on the characteristics of flow field inside de-oiling hydrocyclone based on Reynolds stress model[J]. Chemical Engineering, 2007, 35(5): 32-35 |
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| Authors: | ZHAO Li-xin CUI Fu-yi JIANG Ming-hu Zhu Bao-jun |
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| Affiliation: | 1. School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, Heilongjiang Province, China;2. Mechanical Science and Engineering College, Daqing Petroleum Institute, Daqing 163318, Heilongjiang Province, China |
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| Abstract: | The numerical simulation of the de-oiling hydrocyclone based on Reynolds stress model(RSM) was carried out.The phenomenon of re-circulation flow and short-circuit flow was simulated,and the distribution rules of axial velocity,radial velocity and tangential velocity of the flow field inside hydrocyclone were obtained.The simulation results are in accordance with the experimental data,which proves the correctness of turbulence model and computational method.Moreover,focusing on the mixed medium of volume fraction 2% and oil droplet particle size 40 μm,the volume fraction distribution of oily-water was analyzed.The biggest oil phase volume fraction locates at the center of the hydrocyclone,which contains the volume fraction as high as 98.9%;while the volume fraction is very small near the wall surface,which indicates that the separation effect of the hydrocyclone is satisfied.The numerical simulation can provide a foundation for further study of flow field distribution and structural optimization design of hydrocyclones. |
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| Keywords: | Reynolds stress model liquid-liquid hydrocyclone flow field numerical simulation |
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