| 孟晓刚,倪晋仁.固液两相流中颗粒受力及其对垂向分选的影响[J].水利学报,2002,33(9):0006-0013 |
| 固液两相流中颗粒受力及其对垂向分选的影响 |
| Analysis on forces acting on particles in solid-liquid two-phase flows and their effects on sediment vertical sorting |
| |
| DOI： |
| 中文关键词: 固液两相流 颗粒 垂向分选 受力 |
| 英文关键词: forces acting on particle vertical sorting solid-liquid two-phase flow |
| 基金项目: |
|
| 摘要点击次数: 3118 |
| 全文下载次数: 74 |
| 中文摘要: |
| 在不同颗粒浓度条件下，通过考虑颗粒之间的相互作用，对固液两相流中的颗粒受力进行了分析。采用拉格朗日方法对颗粒在一维两相流中垂向运动过程进行了模拟。根据两相流中颗粒分选达到准稳定状态时的分选特征，探讨了作用于颗粒的各种力对颗粒的各种力对颗粒运动和分选结构的影响。推导出颗粒受力与颗粒分选机理之间的关系。 |
| 英文摘要: |
| The vertical motion of particles suspended in solid-liquid two-phase flow is simulated using 1-D Lagrangian method.Forces acting on particles are analyzed in consideration of the interaction between particles.The term expressing the interaction between particles obtained from Bagnlod's experiment is added into the conventional equation of particle motion,and effects of varies forces under the conditions of different concentration are examined.The result shows ahat the vertical sorting patterns are primarily determined by the joint actions of inter-particle force,effective gravity and resistance between phases,whereas the additional mass force and Basset force will greatly affect the sorting due to the reduction of the peak velocity of the particles. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |