2015
DOI: 10.1039/c4ra15728a
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Abstract: The motion and interaction of a bubble pair in a non-Newtonian fluid (xanthan gum solution) were numerically simulated using volume of fluid (VOF) method, in which the continuous surface tension model and the power-law model were adopted to represent surface tension and rheological properties of non-Newtonian fluids, respectively. The effects of initial horizontal bubble interval, oblique alignment and rheological properties of non-Newtonian fluids on a pair of bubbles rising side-by-side were evaluated in thi… Show more

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Cited by 41 publications
(28 citation statements)
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“…In comparison with feeding gas properties, many researches considered the influence of liquid properties (e.g., viscosity and surface tension) on the bubble size, shape, velocity and coalescence process [16,17,[27][28][29]. The larger bubble is generated in high viscous liquid with longer formation time [28].…”
Section: Accepted Manuscriptmentioning
confidence: 99%
See 1 more Smart Citation
“…In comparison with feeding gas properties, many researches considered the influence of liquid properties (e.g., viscosity and surface tension) on the bubble size, shape, velocity and coalescence process [16,17,[27][28][29]. The larger bubble is generated in high viscous liquid with longer formation time [28].…”
Section: Accepted Manuscriptmentioning
confidence: 99%
“…The state of bubble development changes with the alteration in bubble terminal velocity, coalescence and break-up of bubbles [15][16][17][18][19][20]. The air bubble dynamics i.e., bubble shapes, bubble terminal velocity, the wake structure of bubble and coalescence of two and three bubbles in a bubble column filled with different quiescent liquid e.g., water, glycerol-water solution have been extensively studied [21][22][23][24].…”
Section: Introductionmentioning
confidence: 99%
“…They are often cylindrical or rectangular vessels with a gas sparger (orifice/nozzle), producing gas and liquid interaction. Inside them, the gas phase moves in the form of multi-bubbles in a continuous liquid phase or a liquid-solid suspension [1][2][3][4][5][6][7].…”
Section: Introductionmentioning
confidence: 99%
“…O presente estudo também analisou o comportamento do escoamento de duas bolhas de gás na horizontal em fluido viscoplástico, assim como no trabalho realizado por Islam et al (2015). Observa-se na literatura que poucos experimentos foram realizados com bolhas colocadas lado a lado horizontalmente em fluidos não-newtonianos.…”
Section: Objetivounclassified
“…Nos instantes posteriores a bolha formada, de tamanho maior se distancia da terceira bolha pois sua velocidade é muito maior e a velocidade da terceira bolha diminui uma vez que o campo de velocidade da bolha maior já não interfere mais. Este distanciamento entre as bolhas também foi observado no trabalho realizado por Tariqul Islam et al (2015). Acredita-se que este comportamento se deve a força repulsiva entre o par de bolhas como resultado de uma grande quantidade de vórtices gerados entre as bolhas.…”
Section: Análise Do Escomento Com Mais De Uma Bolha Na Verticalunclassified