Experimental Study on Type I Density Wave Oscillation in Parallel Twin Rectangular Channels under Forced Circulation

Tang Yu; Chen Bingde; Xiong Wanyu; Wang Yanlin

doi:10.13832/j.jnpe.2014.03.0026

Volume 35 Issue 3

Feb. 2025

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Tang Yu, Chen Bingde, Xiong Wanyu, Wang Yanlin. Experimental Study on Type I Density Wave Oscillation in Parallel Twin Rectangular Channels under Forced Circulation[J]. Nuclear Power Engineering, 2014, 35(3): 26-30. doi: 10.13832/j.jnpe.2014.03.0026

Citation:

Tang Yu, Chen Bingde, Xiong Wanyu, Wang Yanlin. Experimental Study on Type I Density Wave Oscillation in Parallel Twin Rectangular Channels under Forced Circulation[J]. Nuclear Power Engineering, 2014, 35(3): 26-30. doi: 10.13832/j.jnpe.2014.03.0026

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Experimental Study on Type I Density Wave Oscillation in Parallel Twin Rectangular Channels under Forced Circulation

doi: 10.13832/j.jnpe.2014.03.0026

CNNC Key Laboratory on Nuclear Reactor Thermal Hydraulics Technology, Nuclear Power Institute of China, Chengdu, 610041, China

Received Date: 2013-05-16
Rev Recd Date: 2013-12-25

Available Online: 2025-02-15

Abstract

Abstract

An experiment has been made on Type I density wave oscillation（D.W.O） in a 50mm×2 mm parallel rectangular channels at the pressure of 2~8 MPa. The region of operation condition in which the Type I appeared was obtained. The effects of system pressure, mass velocity and inlet subcooling on the boundary parameters were also been investigated. Finally, the distribution of instability points was given on Npch-Nsub figure and the empirical correlation of dimensionless boundaries has been made based on the experimental results.
- Parallel rectangular channels,
- Forced circulation,
- Type I D.W.O