Measurement on the flow structure of a gas-liquid separator applied in TMSR
| Autor: | Yalan Qian, Junlian Yin, Dezhong Wang, Tingting Zhang |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Physics
Molten salt reactor Fission 020209 energy Separator (oil production) 02 engineering and technology Mechanics 01 natural sciences 010305 fluids & plasmas law.invention Vortex Physics::Fluid Dynamics Radial velocity Planar Nuclear Energy and Engineering law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Gas separation Body orifice |
| Zdroj: | Annals of Nuclear Energy. 126:20-32 |
| ISSN: | 0306-4549 |
| DOI: | 10.1016/j.anucene.2018.11.009 |
| Popis: | The swirl flow in an axial gas-liquid separator is critical for the fission gas separation in the thorium molten salt reactor. Although the two-phase flow pattern was visualized in our previous studies, the liquid flow field is still unknown. To clarify the three dimensional fluid structure, we used the stereo PIV technique to explore the distribution of three velocity components. The velocity information was extracted from five typical planar positions covering the whole swirl chamber. The averaged tangential velocity profile indicates that a quasi-Rankine vortex dominates the swirl flow and the swirl intensity represented by the maximal tangential velocity firstly increases and then decays gradually. For the first time, we found that a secondary counter rotating vortex is contained in the core region of the swirl flow and the downstream orifice configured in the separator probably induces the variation of flow structure. The averaged axial velocity is distributed in a W type manner across the swirl chamber. The averaged radial velocity is more complicated due to the special configuration of the separator. The magnitude of radial velocity component is of the same order compared to other two velocity components and the distribution is asymmetrical in the first two observing fields and gradually becoming symmetrical in the downstream. All velocity distributions presented in the 3D waterfall constitute a complete picture of the swirl flow structure in the gas-liquid separator. |
| Databáze: | OpenAIRE |
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