管内单颗粒沉降的直接模拟研究

The Direct Simulation of Single Particle Sediment in Pipe

颗粒沉降是液固两相流领域普遍存在的现象和研究的基础。对颗粒沉降过程进行全分辨直接数值模拟,通过模拟结果与实验结果较好的匹配,验证了模拟所用计算程序的可行性与可靠性,基于直接模拟法和高速摄像技术对单颗粒沉降过程的研究,为其他液固两相流体系的研究提供了借鉴。

Particle sedimentation is a common phenomenon in the field of liquid-solid two-phase flow and the basis of research.The numerical simulation of the experimental process of particle sedimentation is carried out,the feasibility and reliability of the simulation program are verified by the simulation results and the experimental results.Based on the direct simulation method and the high-speed imaging technique,which provides a reference for the study of other liquid-solid two-phase flow systems.