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.
分离粒子方法被用来在煤气液体的标准 Rushton 模仿煤气的劫盗的分发搅动的坦克。当很多水泡和他们的轨道与运动方程的结果被追踪，煤气的阶段被对待。双向途径被执行联合分裂期间动量交换。有尺寸分布的水泡的狂暴的分散用一个随机的追踪模型被建模，并且增加的集体力量被包含在包围液体上说明水泡加速的效果。预言的煤气的劫盗分发证明这个方法能给比得上报导试验性的数据的合理预言骚乱的效果是什么时候，在修正考虑了为拖系数。
基金
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）.
