| 摘要: |
| 目的 探讨PIV示踪粒子添加方式对管道流场的影响,寻找最合适的添加方式。方法 对比单管、多管、L型管加注示踪粒子的方式,采用数值模拟与试验相结合的方法。结果 通过对比可知,L管加注示踪粒子在各流量下对流场的影响均较小,但粒子在管道内的分布极不均匀,几乎全部集中于管道中部。多管加注示踪粒子对流场的扰动与其他方式相差不大。结论 L管示踪粒子集中在管道中部,不利于PIV全管道截面流态测量,多管加注的示踪粒子分布最为均匀,为最佳加注方式。 |
| 关键词: 示踪粒子 PIV 天然气 流量计量 |
| DOI：10.3969/j.issn.1007-3426.2022.03.020 |
| 分类号: |
| 基金项目:中国石油西南油气田公司博士工作站课题“基于LDV/PIV技术的天然气管道内流态变化规律研究”(20200308-01) |
|
| Research on the way of adding tracer particles based on PIV experiment |
|
Qiu Yilong1,2, Chen Huiyu1,2, Zeng Hongji3, Ji Lei3
|
|
1. Research Institute of Natural Gas Technology, PetroChina Southwest Oil & Gasfield Company, Chengdu, Sichuan, China;2. Key Laboratory of Natural Gas Quality Control and Energy Measurement, CNPC, Chengdu, Sichuan, China;3. Key Laboratory of Fluid and Power Machinery, Ministry of Education, Xihua University, Chengdu, Sichuan, China
|
| Abstract: |
| Objective The influence of particle image velocimetry(PIV) tracer particle addition method on pipeline flow field was discussed to find the most suitable addition method. Methods Compare three ways of filling tracer particles:single-tube, multi-tube and L-tube, and adopt the research method of combining numerical simulation and experiment. Results Through comparison, it can be seen that the tracer particles injected into L-tube have little effect on the flow field at each flow rate. However, the distribution of particles in the pipe is very uneven, and almost all of them are concentrated in the middle of the pipe. In addition, the disturbance of multi-tube filling tracer particles in the convective field is similar to that in other ways. Conclusion sThe tracer particles of L-pipe are concentrated in the middle of the pipe, which is not conducive to the flow pattern measurement of the whole pipe section of PIV. The tracer particle distribution of multi-tube filling is the most uniform, which is the best filling method. |
| Key words: tracer particle particle image velocimetry(PIV) natural gas flow metering |
