| 突扩圆管内液-固两相流固体颗粒运动特性的DPM数值模拟 |
| |
| 引用本文： | 李国美,王跃社,亢力强. 突扩圆管内液-固两相流固体颗粒运动特性的DPM数值模拟[J]. 工程热物理学报, 2008, 29(12) |
| |
| 作者姓名： | 李国美 王跃社 亢力强 |
| |
| 作者单位： | 西安交通大学动力工程多相流国家重点实验室,陕西,西安,710049;中国科学院力学研究所,北京,100190 |
| |
| 基金项目： | 国家自然科学基金委创新研究群体基金资助，国家自然科学基金委重点资助 |
| |
| 摘 要： | 采用考虑颗粒碰撞的欧拉一拉格朗日数值模拟方法(DPM),对水平突扩圆管中液固两相流固体颗粒的碰撞过程进行了数值计算.在模型中,对液相采用欧拉法建立控制方程,对离散颗粒采用拉格朗日方法模拟.采用硬球模型描述颗粒间的碰撞作用.计算结果表明,该模型可以真实地模拟液固两相流中固体颗粒运动的动态变化过程以及颗粒的非均匀分布特征,从单颗粒层次上提供颗粒的运动信息,这有助于深入研究液固两相流中固体颗粒的运动规律.
|
| 关 键 词： | 欧拉一拉格朗日方法 硬球模型 液固两相流 碰撞 |
NUMERICAL SIMULATION ON SOLID PARTICLE MOVEMENT CHARACTERS OF LIQUID-SOLID TWO PHASE FLOW IN SUDDEN EXPANSION PIPE BY DISCRETE PARTICLE MODEL |
| |
| LI Guo-Mei,WANG Yue-She,KANG Li-Qiang. NUMERICAL SIMULATION ON SOLID PARTICLE MOVEMENT CHARACTERS OF LIQUID-SOLID TWO PHASE FLOW IN SUDDEN EXPANSION PIPE BY DISCRETE PARTICLE MODEL[J]. Journal of Engineering Thermophysics, 2008, 29(12) |
| |
| Authors: | LI Guo-Mei WANG Yue-She KANG Li-Qiang |
| |
| Affiliation: | LI Guo-Mei~1 WANG Yue-She~1 KANG Li-Qiang~2 (1.State Key Laboratory of Multiphase Flow in Power Engineering,Xi'an Jiaotong University,Xi'an 710049,China,2.Institute of Mechanics,Chinese Academy of Science,Beijing 100190) |
| |
| Abstract: | Numerical simulation of solid particle collision process of liquid-solid two phase flow in hor- izontal sudden expansion pipe was performed with Eulerian-Lagrangian model(DPM).In this model, governing equations of liquid were established with Eulerian approach,and discrete particle phase was simulated through Largrangian method.The hard sphere model was used to describe inter-particle collisions.The results showed that the model could really simulate the dynamic process of particles and their unequal distri... |
| |
| Keywords: | Eulerian-Lagrangian approach hard sphere model liquid-solid two phase flow collision |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
