Study on Flow Pattern and Flow Regime Transition Criterion in a Heating Rectangular Mini-Channel

Tian Ye; Huang Wei; Luo Hanyu; Wang Haisong; Li Pengfei; Cao Simin

doi:10.13832/j.jnpe.2018.06.0015

Volume 39 Issue 6

Dec. 2018

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Tian Ye, Huang Wei, Luo Hanyu, Wang Haisong, Li Pengfei, Cao Simin. Study on Flow Pattern and Flow Regime Transition Criterion in a Heating Rectangular Mini-Channel[J]. Nuclear Power Engineering, 2018, 39(6): 15-18. doi: 10.13832/j.jnpe.2018.06.0015

Citation:

Tian Ye, Huang Wei, Luo Hanyu, Wang Haisong, Li Pengfei, Cao Simin. Study on Flow Pattern and Flow Regime Transition Criterion in a Heating Rectangular Mini-Channel[J]. Nuclear Power Engineering, 2018, 39(6): 15-18. doi: 10.13832/j.jnpe.2018.06.0015

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Study on Flow Pattern and Flow Regime Transition Criterion in a Heating Rectangular Mini-Channel

doi: 10.13832/j.jnpe.2018.06.0015

Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2017-11-10
Rev Recd Date: 2018-07-02

Abstract

Abstract

A visual experimental system is designed to study the flow patterns in a rectangular mini-channel. The forces on gas-liquid two phases in critical state are analyzed. A new flow regime transition criterion based on mechanical model is proposed, which is compared with the experimental data. The results show that the prediction accuracy of bubbly flow-confined bubble flow transition criterion is 93.94% and the prediction accuracy of confined bubble flow-annular flow transition criterion is 94.07%. The prediction result is in agreement with the experimental data.
- Mini-channel,
- Flow pattern,
- Flow regime transition criterion,
- Mechanical model