Dynamics and Noise Level Estimation in Two-Phase Flow through a Mini Channel

Grzegorz Górski; Grzegorz Litak; Romuald Mosdorf; Andrzej Rysak; Krzysztof Urbanowicz

doi:10.4028/www.scientific.net/AMM.844.115

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 844Dynamics and Noise Level Estimation in Two-Phase...

Dynamics and Noise Level Estimation in Two-Phase Flow through a Mini Channel

Abstract:

By changing air to water flow rates of a two-phase flow through a minichannel we identified aggregation and partitioning of air bubbles and slugs of various sizes. It was found that for some flowconditions air bubbles formed periodic patterns. The identification of the spatio-temporal behaviourswas performed with a laser transitivity sensor and confirmed by a digital camera. We used the Hurstexponent to distinguish instabilities in air slugs, their breakups and aggregations. In addition, we performed noise level estimation.

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Periodical:

Applied Mechanics and Materials (Volume 844)

Pages:

115-121

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.844.115

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Online since:

July 2016

Authors:

Grzegorz Górski, Grzegorz Litak*, Romuald Mosdorf, Andrzej Rysak, Krzysztof Urbanowicz

Keywords:

Bubble Dynamics, Multiscale Entropy, Two-Phase Flow

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