Fractal Approach to Bubble Rising Dynamics in Non-Newtonian Fluids

Wen Yuan Fan; Xiao Hong Yin

doi:10.4028/www.scientific.net/AMR.889-890.559

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 889-890Fractal Approach to Bubble Rising Dynamics in...

Fractal Approach to Bubble Rising Dynamics in Non-Newtonian Fluids

Abstract:

The Laser Doppler anemometry was employed to determine quantitatively the liquid velocity induced by the successive rising of single bubble in non-Newtonian carboxymethylcellulose (CMC) aqueous solutions under various experimental conditions of mass concentration solutions, measures heights and gas flow rate. The features of liquid motion in the region of bubble rising channel were investigated by analysis the liquid velocity pulsation using fractal theory. The results show that the liquid motion in the channel zone of bubble rise has a special feature of double fraction, and shows strong positive persistence characteristics for a small delay, but the positive persistence characteristics begins to reduce obviously with the increase of the delay, and even presents the anti-persistence for some measured points.

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Periodical:

Advanced Materials Research (Volumes 889-890)

Pages:

559-562

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.889-890.559

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Online since:

February 2014

Authors:

Wen Yuan Fan*, Xiao Hong Yin

Keywords:

Bubble Rising, Dynamic, Fractal Theory, Laser Doppler Anemometry, Non-Newtonian Fluid

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