Energy of intrinsic mode function for gas-liquid flow pattern identification

• Autorzy: Sun Z. , Gong H.
• Języki publikacji: PL

Abstrakty

EN

Gas-liquid flows abound in a great variety of industrial processes. Correct recognition of the regimes of a gas-liquid flow is one of the most formidable challenges in multiphase flow measurement. Here we put forward a novel approach to the classification of gas-liquid flow patterns. In this method a flow-pattern map is constructed based on the average energy of intrinsic mode function and the volumetric void fraction of gas-liquid mixture. The intrinsic mode function is extracted from the pressure fluctuation across a bluff body using the empirical mode decomposition technique. Experiments adopting air and water as the working fluids are conducted in the bubble, plug, slug, and annular flow patterns at ambient temperature and atmospheric pressure. Verification tests indicate that the identification rate of the flow-pattern map developed exceeds 90%. This approach is appropriate for the gas-liquid flow pattern identification in practical applications.

Słowa kluczowe

EN

gas-liquid flow pattern; flow-pattern map; pressure fluctuation; bluff body; signal energy; intrinsic mode function; empirical mode decomposition

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2012
• Tom: Vol. 19, nr 4
• Strony: 759--766
• Opis fizyczny: Bibliogr. 20 poz., rys., tab., wykr.

Twórcy

autor

Sun Z.

autor

Gong H.

• Central South University, School of Energy Science and Engineering, Changsha 410083, China,

Bibliografia

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