Properties of Flooding Wave in Vertical Churn Flow
NURETH-14 - 2011 September 25-30

Presented at:
2011 September 25-30
Toronto, Canada
Session Title:
A2-1 Multifield Two-Phase Flow and Flow Regimes Identification and

Ke Wang (Xi'an Jiaotong University, Shaanxi, China)
Bofeng Bai (Xi'an Jiaotong University)
Bo Yang (Xi'an Jiaotong University, Shaanxi, China)
Chen Xie (Xi'an Jiaotong University, Shaanxi, China)


It is more accurate to predict the critical heat flux (CHF) from the start of churn flow rather than the

start of annular flow. High-speed photography has been employed for qualitative investigation of

entrainment in vertical two-phase flow under churn flow condition. This paper mainly focuses on

the evolution of the flooding waves close to the water inlet section and liquid distribution in the

cross-section of tube. The properties of flooding wave such as frequency and amplitude have been


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