| 基于离散颗粒法模拟搅拌釜气含率分布 |
| |
| 引用本文： | 韩路长,刘跃进,罗和安. 基于离散颗粒法模拟搅拌釜气含率分布[J]. 中国化学工程学报, 2007, 15(6): 808-813. DOI: 10.1016/S1004-9541(08)60007-5 |
| |
| 作者姓名： | 韩路长 刘跃进 罗和安 |
| |
| 作者单位： | College of Chemical Engineering,Xiangtan University,Xiangtan 411105,China |
| |
| 基金项目： | Supported by the National Natural Science Foundation of China （No.20776121） and the Specialized Research Fund for the Doctoral Program of Higher Education （No.20050530001）, and the Scientific Research Fund of Hunan Provincial Education Department （No.07C765）. |
| |
| 摘 要： | The discrete particle method was used to simulate the distribution of gas holdup in a gas-liquid standard Rushton stirred tank. The gas phase was treated as a large number of bubbles and their trajectories were tracked with the results of motion equations. The two-way approach was performed to couple the interphase momentum exchange. The turbulent dispersion of bubbles with a size distribution was modeled using a stochastic tracking model, and the added mass force was involved to account for the effect of bubble acceleration on the surrounding fluid. The predicted gas holdup distribution showed that this method could give reasonable prediction comparable to the reported experimental data when the effect of turbulence was took into account in modification for drag coefficient.
|
| 关 键 词： | 数值模拟 离散颗粒法 多相流 气体流动 |
| 收稿时间： | 2007-02-26 |
| 修稿时间： | 2007-09-04 |
Numerical Simulation of Gas Holdup Distribution in a Standard Rushton Stirred Tank Using Discrete Particle Method |
| |
| Luchang HAN, Yuejin LIU,He''an LUO. Numerical Simulation of Gas Holdup Distribution in a Standard Rushton Stirred Tank Using Discrete Particle Method[J]. Chinese Journal of Chemical Engineering, 2007, 15(6): 808-813. DOI: 10.1016/S1004-9541(08)60007-5 |
| |
| Authors: | Luchang HAN Yuejin LIU He''an LUO |
| |
| Affiliation: | College of Chemical Engineering,Xiangtan University,Xiangtan 411105,China;College of Chemical Engineering,Xiangtan University,Xiangtan 411105,China;College of Chemical Engineering,Xiangtan University,Xiangtan 411105,China |
| |
| Abstract: | The discrete particle method was used to simulate the distribution of gas holdup in a gas-liquid standard Rushton stirred tank. The gas phase was treated as a large number of bubbles and their trajectories were tracked with the results of motion equations. The two-way approach was performed to couple the interphase momentum exchange. The turbulent dispersion of bubbles with a size distribution was modeled using a stochastic tracking model, and the added mass force was involved to account for the effect of bubble acceleration on the surrounding fluid. The predicted gas holdup distribution showed that this method could give reasonable prediction comparable to the reported experimental data when the effect of turbulence was took into account in modification for drag coefficient. |
| |
| Keywords: | numerical simulation gas holdup stirred tank discrete particle |
| 本文献已被 维普 万方数据 ScienceDirect 等数据库收录！ |
| 点击此处可从《中国化学工程学报》浏览原始摘要信息 |
|
点击此处可从《中国化学工程学报》下载全文 |
