Experiment and numerical simulation of external performances and internal flow of a molten salt pump

被引：0
|
作者：
Shao C.-L. [1 ]
Gu B.-Q. [1 ]
Zhou J.-F. [1 ]
Cheng W.-J. [1 ]
机构：
[1] School of Mechanical and Power Engineering, Nanjing Tech University, Nanjing
来源：
| 1935年 / Beijing University of Aeronautics and Astronautics (BUAA)卷 / 31期
关键词：
External performance; Molten salt pump; Particle image velocimetry; Two-phase flow; Unsteady flow;
D O I：
10.13224/j.cnki.jasp.2016.08.019
中图分类号：
学科分类号：
摘要：
In order to reveal the regularity of two-phase flow in the molten salt pump, an experimental method of a molten salt pump was researched, and the external performances were obtained. The internal flow field near the volute tongue was measured by using PIV (particle image velocimetry) technology. Unsteady numerical simulation of two-phase flow in the molten salt pump was carried out. The differences between experiment and numerical simulation results were elaborated. The distribution of volume fraction of crystal particles was obtained and its evolutional regularity was analyzed. The results show that the distribution of volume fraction of crystal particle is stable in the molten salt pump. In the impeller, particles are accumulated near the suction side of blades. The particle volume fraction is affected significantly by the particle diameter. The larger particle size means more obvious particle accumulation phenomenon. The molten salt pump outlet's static pressure fluctuates periodically, and the amplitude of pressure fluctuation is affected by the particle volume fraction distribution in the impeller passage. © 2016, Editorial Department of Journal of Aerospace Power. All right reserved.
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页码：1935 / 1942
页数：7
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