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《Journal of Northeast Dianli University》 2010-06
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Chaotic Characteristics Analysis of Differential Pressure Fluctuating Signal across Tube Bundles

QIN Zi-ming~1, LI Feng-quan~2 (1.Inner Mongolia guodian energy investment Co. LTD hulunbeir coal project,Inner Mongolia The hulunbuir city hailaer area 021008 ;2.Inner Mongolia electric science research institute, Inner Mongolia Hohhot 010020)  
With air and water for the test medium,the differential pressure fluctuations are measured at different flow regime across tube bundles. The differential pressure fluctuations signal each group was extracted to compose the time series,then its chaos were analyzed,including to analyze the correlation dimension and the index of HURST index. The test results showed that the differential pressure fluctuations signal of gas-water two-phase flow across the vertical upward tube bundle was of chaos characteristics, which could be well used to characterize the two-phase flow type of a flow.
【CateGory Index】: O359
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