Abstract This study focuses on the effect of the riser lateral vibration on the pressure loss of coarse particles hydraulic lifting by the numerical simulation. Euler-Euler two-fluid model based on kinetic theory is used to simulate the flow behavior of coarse particles in the riser, and the numerical model has been validated by using the experimental data. The dynamic grid technique is employed to simulate the lateral vibration of the riser. According to results of numerical simulation, the lateral vibration leads to the cyclical fluctuation of the pressure loss of coarse particles hydraulic lifting, and the average pressure loss of the dynamic riser is bigger than the static riser in general. The influence of the vibration amplitude, vibration period and modal shape on the pressure loss is analyzed, and the cause of pressure loss is also discussed.

中文翻译：

---

侧向振动下立管粗颗粒水力举升压力损失数值研究

摘要 本文通过数值模拟研究了隔水管横向振动对粗颗粒水力举升压力损失的影响。采用基于动力学理论的Euler-Euler二流体模型来模拟提升管中粗颗粒的流动行为，并利用实验数据对数值模型进行了验证。采用动态网格技术模拟隔水管横向振动。根据数值模拟结果，横向振动导致粗颗粒水力举升压力损失出现周期性波动，动立管的平均压力损失总体上大于静立管。分析了振动幅值、振动周期和模态形状对压力损失的影响，