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3D Wavelet Multiresolution of Multiphase Flow CT Images

[+] Author Affiliations
Masahiro Takei, Mitsuaki Ochi

Nihon University, Tokyo, Japan

Hui Li

Kagoshima University, Kagoshima, Japan

Yoshifuru Saito

Hosei University, Tokyo, Japan

Kiyoshi Horii

Shirayuri Women’s College, Tokyo, Japan

Paper No. FEDSM2002-31118, pp. 1583-1589; 7 pages
  • ASME 2002 Joint U.S.-European Fluids Engineering Division Conference
  • Volume 1: Fora, Parts A and B
  • Montreal, Quebec, Canada, July 14–18, 2002
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 0-7918-3615-0 | eISBN: 0-7918-3600-2
  • Copyright © 2002 by ASME


The extraction of dominant particle density fluctuation in various time-space frequency levels on a pipeline cross section was performed using capacitance-computed tomography and three-dimensional discrete wavelets transform. As a result, particle density fluctuation downstream of a bent pipe is decomposed into the time-space levels in a non-choking state and a pseudo-choking state. The proposed method enables realization of the time and position at which particle density fluctuations with respect to dominant time-space levels pass through the pipeline.

Copyright © 2002 by ASME



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