| 泡状流相分布及湍流结构的欧拉-拉格朗日双向耦合数值研究 |
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| 引用本文： | 庞明军,魏进家,刘海燕,宇波.泡状流相分布及湍流结构的欧拉-拉格朗日双向耦合数值研究[J].西安交通大学学报,2010,44(7). |
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| 作者姓名： | 庞明军 魏进家 刘海燕 宇波 |
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| 作者单位： | 1. 西安交通大学苏州研究院,215021,江苏苏州;西安交通大学动力工程多相流国家重点实验室,710049,西安
2. 中国石油大学城市油气输配技术北京市重点实验室,102249,北京 |
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| 基金项目： | 江苏省自然科学基金资助项目，国家自然科学基金资助项目，高等学校博士学科点专项科研基金资助项目 |
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| 摘 要： | 使用欧拉-拉格朗日双向耦合数值模拟方法对泡状流的相分布及气泡对液相湍流产生的影响做了详细的调查.液相的速度场采用直接数值模拟方法求解,气泡的运动轨迹由牛顿运动方程计算.相间的耦合是把相间作用力作为液相动量方程的源相来实现的,所考虑的相间作用力有阻力、剪切升力、惯性力等.研究表明:阻力、浮力、剪切升力和虚拟质量力对气泡的运动具有重要影响,大量的气泡在剪切升力的作用下聚集在壁面附近;与单液体相相比,气泡的加入使液相的平均速度、湍流强度和雷诺应力均有一定幅度的降低,而且气泡的加入修改了阻力系数公式.
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| 关 键 词： | 泡状流 欧拉-拉格朗日 双向耦合 直接数值模拟 |
Numerical Investigation on Phase Distribution and Turbulence of Liquid in Bubbly Flow Using Euler-Lagrange Two-Way Method |
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| PANG Mingjun,WEI Jinjia,LIU Haiyan,YU Bo.Numerical Investigation on Phase Distribution and Turbulence of Liquid in Bubbly Flow Using Euler-Lagrange Two-Way Method[J].Journal of Xi'an Jiaotong University,2010,44(7). |
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| Authors: | PANG Mingjun WEI Jinjia LIU Haiyan YU Bo |
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| Institution: | PANG Mingjun1,2,WEI Jinjia1,LIU Haiyan1,YU Bo3 (1. Xi'an Jiaotong University Suzhou Academy,Suzhou,Jiangsu 215021,China,2. State Key Laboratory of Multiphase Flow in Power Engineering,Xi'an Jiaotong University,Xi'an 710049,3. Beijing Key Laboratory of Urban Oil and Gas Distribution Tech.,China University of Petroleum,Beijing 102249,China) |
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| Abstract: | The phase distribution and the effect of bubbles on turbulence of liquid were investigated using the Euler-Lagrange two-way method. The liquid-phase velocity field was solved with the direct numerical simulation (DNS) in the Euler frame of reference,and the bubble motion track was calculated by the Newtonian motion equations considering interaction forces including drag force,shear lift force,inertia force,etc. ,in the Lagrange fame of reference. The coupling between phases was realized by regarding the int... |
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| Keywords: | bubbly flow Euler-Lagrange two-way direct numerical simulation |
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