颗粒浓度对含颗粒油液动态特性的影响
发布时间：2019-01-30 08:19
【摘要】：为了控制油液中颗粒物,降低对设备运行的危害,基于液固两相流的连续介质理论建立了含悬浮颗粒油液的伪均质流数学模型,研究悬浮颗粒油液的动态特性;利用所建模型对不同颗粒浓度情况下油液的速度、压力以及颗粒物的速度、浓度分布进行分析.研究结果表明,特征线法求解结果与实验数据吻合较好;油液速度、压力的跃变幅值随着颗粒浓度增大而减小,颗粒速度、浓度随着浓度的增大而增大;颗粒浓度分布受油液压力影响较大;伪均质流在管路始端、中段、终端发生跃变时刻分别为1/4脉动周期的奇数倍、1/8脉动周期的奇数倍和1/4脉动周期的偶数倍.
[Abstract]:In order to control the particles in the oil and reduce the harm to the operation of the equipment, a pseudo-homogeneous flow mathematical model was established based on the continuum theory of liquid-solid two-phase flow, and the dynamic characteristics of the suspended particle oil were studied. The model was used to analyze the oil velocity, pressure, particle velocity and concentration distribution under different particle concentrations. The results show that the results obtained by the characteristic line method are in good agreement with the experimental data, the jump amplitude of oil velocity and pressure decrease with the increase of particle concentration, and the particle velocity and concentration increase with the increase of concentration. The distribution of particle concentration is greatly affected by the oil pressure, and the pseudo-homogeneous flow occurs at the beginning, middle and end of the pipeline at the odd times of the 1 / 4 pulsation period, the odd number of the 1 / 8 pulsating period and the even times of the 1 / 4 pulsating period.
【作者单位】： 重庆工商大学废油资源化技术与装备工程研究中心;
【基金】：国家自然科学基金资助项目(51375516)
【分类号】：O347.7
本文编号：2417937
[Abstract]:In order to control the particles in the oil and reduce the harm to the operation of the equipment, a pseudo-homogeneous flow mathematical model was established based on the continuum theory of liquid-solid two-phase flow, and the dynamic characteristics of the suspended particle oil were studied. The model was used to analyze the oil velocity, pressure, particle velocity and concentration distribution under different particle concentrations. The results show that the results obtained by the characteristic line method are in good agreement with the experimental data, the jump amplitude of oil velocity and pressure decrease with the increase of particle concentration, and the particle velocity and concentration increase with the increase of concentration. The distribution of particle concentration is greatly affected by the oil pressure, and the pseudo-homogeneous flow occurs at the beginning, middle and end of the pipeline at the odd times of the 1 / 4 pulsation period, the odd number of the 1 / 8 pulsating period and the even times of the 1 / 4 pulsating period.
【作者单位】： 重庆工商大学废油资源化技术与装备工程研究中心;
【基金】：国家自然科学基金资助项目(51375516)
【分类号】：O347.7
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