Research on Oscillation of Two-phase Flow Using Wavelet Packets

SHANG Zhi<sup>1,2</sup>(1. School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200030, China;2. Department of Thermal Engineering, Tsinghua University, Beijing 100084, China)

doi:10.7538/yzk.2005.39.03.0232

SHANG Zhi1,2(1. School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200030, China;2. Department of Thermal Engineering, Tsinghua University, Beijing 100084, China). Research on Oscillation of Two-phase Flow Using Wavelet Packets[J]. Atomic Energy Science and Technology, 2005, 39(3): 232-232. DOI: 10.7538/yzk.2005.39.03.0232

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Research on Oscillation of Two-phase Flow Using Wavelet Packets

SHANG Zhi^1,2(1. School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200030, China;2. Department of Thermal Engineering, Tsinghua University, Beijing 100084, China)

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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 (cha)racters 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.

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Research on Oscillation of Two-phase Flow Using Wavelet Packets

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