Effects of Inclination and Rolling on Interfacial Parameter Distributions of Bubbly Flow in a Rectangular Duct

Yan Chaoxing; Yan Changqi; SuN Licheng; Xing Dianchuan; Wang Yang

doi:10.13832/j.jnpe.2014.05.0083

Volume 35 Issue 5

Feb. 2025

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Article Navigation > Nuclear Power Engineering > 2014 > 35(5): 83-88

Yan Chaoxing, Yan Changqi, SuN Licheng, Xing Dianchuan, Wang Yang. Effects of Inclination and Rolling on Interfacial Parameter Distributions of Bubbly Flow in a Rectangular Duct[J]. Nuclear Power Engineering, 2014, 35(5): 83-88. doi: 10.13832/j.jnpe.2014.05.0083

Citation:

Yan Chaoxing, Yan Changqi, SuN Licheng, Xing Dianchuan, Wang Yang. Effects of Inclination and Rolling on Interfacial Parameter Distributions of Bubbly Flow in a Rectangular Duct[J]. Nuclear Power Engineering, 2014, 35(5): 83-88. doi: 10.13832/j.jnpe.2014.05.0083

Citation:

Yan Chaoxing, Yan Changqi, SuN Licheng, Xing Dianchuan, Wang Yang. Effects of Inclination and Rolling on Interfacial Parameter Distributions of Bubbly Flow in a Rectangular Duct[J]. Nuclear Power Engineering, 2014, 35(5): 83-88. doi: 10.13832/j.jnpe.2014.05.0083

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Effects of Inclination and Rolling on Interfacial Parameter Distributions of Bubbly Flow in a Rectangular Duct

doi: 10.13832/j.jnpe.2014.05.0083

National Defense Key Subject Laboratory for Nuclear Safety and Simulation Technology, Harbin Engineering University, Harbin, 150001, China

Received Date: 2013-06-13
Rev Recd Date: 2013-12-27

Available Online: 2025-02-15

Abstract

Abstract

Effects of inclination and rolling on lateral distribution of interfacial parameters for bubbly flow were studied experimentally with the help of a high-speed camera. Local parameters such as bubble proportion, void fraction and interfacial area concentration（IAC） were obtained in the experiments, showing a similar character with each other. These local parameters change slightly in the central part of the duct and present peaks around positions of xi/（w/2）=±0.5（xi represents the distance from origin based on the central axis of wide side to the inner wall surface of the narrow side, w denotes the wide side） in vertical position for both motionless and rolling cases. The peak of local parameters near the lower wall region is weakened and that near the upper wall is enhanced with an increase in inclined or rolling angles. There exist no obvious differences of interfacial parameters in lateral distribution at the same angle under inclined and rolling conditions within the range of experimental rolling parameters, which is mainly due to that the additional inertial force in lateral direction induced by rolling motion is far more less than that of buoyancy.
- Bubbly flow,
- Rectangular duct,
- Inclination,
- Rolling motion,
- Interfacial parameter distribution

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