Publicado 4 números por año
ISSN Imprimir: 2169-2785
ISSN En Línea: 2167-857X
Indexed in
LOCAL VOID FRACTION AND FLUID VELOCITY MEASUREMENTS IN A CAPILLARY CHANNEL WITH A SINGLE OPTICAL PROBE
SINOPSIS
The present work investigates the capability of a single optical probe in terms of simultaneous local void fraction and velocity measurement of a two-phase slug flow in a capillary pipe. The optical fiber probe is mounted on a 2-mm internal diameter transparent tube where a water-air flow is recirculated. Tests are performed by varying both the probe position and the liquid mass flow rate. A high-speed camera is also used to check the accuracy of the optical signal and to perform a qualitative analysis on the intrusiveness of the optic probe. Results prove that accurate velocity measurements of two-phase confined flows can be performed by means of a single fiber mounted perpendicular to the flow direction. The peculiarities of the presented measurement method with respect to the one used for macroscale pipes are discussed together with a novel definition of latency length.
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Masiukiewicz Maciej, Anweiler Stanisław, Two-phase flow structure assessment based on dynamic image analysis, Flow Measurement and Instrumentation, 65, 2019. Crossref
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Ronshin F. V., Dementyev Yu. A., Chinnov E. A., Cheverda V. V., Kabov O. A., Experimental Investigation of Adiabatic Gas-Liquid Flow Regimes and Pressure Drop in Slit Microchannel, Microgravity Science and Technology, 31, 5, 2019. Crossref
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Xu Yifan, Dai Zhentao, Ji Haifeng, Wang Baoliang, Huang Zhiyao, Hardalupas Yannis, Cross-sectional phase distribution measurement of slug flow in small channels, Experiments in Fluids, 62, 11, 2021. Crossref
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Wang Teng, Liu Zhaohui, Gui Miao, Bi Qincheng, Sui Zhiqiang, Flow regime identification of steam-water two-phase flow using optical probes, based on local parameters in vertical tube bundles, Flow Measurement and Instrumentation, 79, 2021. Crossref
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Ronshin Fedor, Dementyev Yuriy, Chinnov Evgeny, Experimental study of heat transfer in two-phase flow regimes in rectangular microchannel, Journal of Physics: Conference Series, 1677, 1, 2020. Crossref