Experimental Study on Flow Patterns and Void Fraction of Non-swirling and Swirling Gas-liquid Two-phase Flow Based on WMS

Liu Shuai; Chen Cong; Liu Li; Gu Hanyang; Zhang Jiarong

doi:10.13832/j.jnpe.2022.05.0043

Volume 43 Issue 5

Oct. 2022

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Liu Shuai, Chen Cong, Liu Li, Gu Hanyang, Zhang Jiarong. Experimental Study on Flow Patterns and Void Fraction of Non-swirling and Swirling Gas-liquid Two-phase Flow Based on WMS[J]. Nuclear Power Engineering, 2022, 43(5): 43-50. doi: 10.13832/j.jnpe.2022.05.0043

Citation:

Liu Shuai, Chen Cong, Liu Li, Gu Hanyang, Zhang Jiarong. Experimental Study on Flow Patterns and Void Fraction of Non-swirling and Swirling Gas-liquid Two-phase Flow Based on WMS[J]. Nuclear Power Engineering, 2022, 43(5): 43-50. doi: 10.13832/j.jnpe.2022.05.0043

Citation:

Liu Shuai, Chen Cong, Liu Li, Gu Hanyang, Zhang Jiarong. Experimental Study on Flow Patterns and Void Fraction of Non-swirling and Swirling Gas-liquid Two-phase Flow Based on WMS[J]. Nuclear Power Engineering, 2022, 43(5): 43-50. doi: 10.13832/j.jnpe.2022.05.0043

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Experimental Study on Flow Patterns and Void Fraction of Non-swirling and Swirling Gas-liquid Two-phase Flow Based on WMS

doi: 10.13832/j.jnpe.2022.05.0043

1.
School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
2.
Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2021-09-01
Rev Recd Date: 2022-07-19
Publish Date: 2022-10-12

Abstract

Abstract

In order to explore the flow pattern characteristics and the spatial-temporal distribution characteristics of void fraction before and after the gas-liquid two-phase flow pattern changes from non-swirling state to swirling state, based on the high-speed camera and the self-developed wire mesh sensor (WMS) measurement technology, the spatial-temporal evolution characteristics of the phase state of the air-water two-phase flow under the action of a swirling device in a horizontal tube with an inner diameter of 30 mm are studied visually. Under the centrifugal force induced by the swirler, there are obvious bubble coalescence behavior and droplet deposition phenomena in the flow field. Among them, the bubble flow will be transformed into swirling gas column flow, the plug flow into swirling intermittent flow, the slug flow into swirling annular flow, and the annular flow into swirling ribbon flow; compared with slug flow and annular flow, the fluctuation amplitude of the section average void fraction of bubbly flow and plug flow at the swirler outlet is significantly weakened, but the centrifugal force field does not significantly change the section average void fraction of each flow pattern before and after the transition from non-swirling state to swirling state.
- Gas-liquid two-phase flow,
- Swirling flow,
- Flow pattern transition,
- Void fraction,
- Wire mesh sensor

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References(28)

References

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