Numerical Research on Oscillation of Two-phase Flow under Rolling Motion
Two-phase flow instability and dynamics of a parallel multichannel system has been theoretically studied under periodic excitation induced by rolling motion in the present research. Based on the homogeneous flow model considering the rolling motion, the parallel multichannel model and system control equations are established by using the control volume integrating method. Gear method is used to solve the system control equations. The influences of the inlet, upward sections, and heating power on the flow instability under rolling motion have been analyzed. The marginal stability boundary (MSB) under rolling motion condition is obtained. The unstable regions occur in both low and high equilibrium quality and inlet subcooling regions. The multiplied period phenomenon occurs in the high equilibrium quality region and the chaos phenomenon appears on the right of MSB. The concept of stability space is presented.
Y.J.Zhang G.H.Su S.Z.Qiu H.Li
Department of Nuclear Science and Technology,State Key Laboratory of Multiphase Flow in Power Engine Department of Nuclear Science and Technology, State Key Laboratory of Multiphase Flow in Power Engin
国际会议
18th International Conference on Nuclear Engineering(第18届国际核能工程大会 ICONE 18)
西安
英文
1-12
2010-05-17（万方平台首次上网日期，不代表论文的发表时间）