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Symbol statistics: a new tool for understanding multiphase flow phenomena

C.S. Daw
Oak Ridge National Laboratory
Knoxville TN 37932-6472

C.E.A. Finney, K. Nguyen
University of Tennessee
Knoxville TN 37996-2210

J.S. Halow
Federal Energy Technology Laboratory
Morgantown WV 26507-0880

We discuss data symbolization as a tool for identifying temporal patterns in complex measurement signals. We describe the basic concepts involved and illustrate their application for the analysis of gas bubble injection data. Specific issues addressed include selection of symbolization parameters, construction of symbol sequence histograms, and statistical characterization and comparison of these histograms. We demonstrate that symbol sequence statistics can reveal unique information about deterministic patterns. Such information may be useful for developing flow diagnostics and comparing computational models with experiments.

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Daw CS, Finney CEA, Nguyen K, Halow JS (1998). Symbol statistics: a new tool for understanding multiphase flow phenomena. 1998 International Mechanical Engineering Congress & Exposition (ASME) (Anaheim, California USA; 1998 November 15-20): 221-229.
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