摘要
利用小波包对信号的精确细分特性,对汽液两相流动密度波不稳定性的脉动信号进行分析,并由此得到两相密度波不稳定性脉动的特征向量。由这些特征向量可得到汽液两相流动脉动能量随脉动频率的分布状况,开创了对汽液两相流动密度波不稳定性研究的新视角。
A novel research method to study density wave oscillation of vapor-water two-phase flow using wavelet packets was applied. The eigenvalues of the density wave oscillation of vapor-water two-phase flow were picked-up by wavelet packets employing the characters of signal precision decomposition. The distribution and variation of the energy of the oscillation were observed inside the different fields of the oscillation frequency. This method will open a new angle for studying the density wave type oscillation of vapor-water two-phase flow.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2005年第3期232-235,共4页
Atomic Energy Science and Technology
