Xanthan gum solutions with various concentrations were used as the dispersed phase to study the formation time for drop formation at a T-junction. Two critical concentrations (0.05 and 0.2 wt%) of xanthan gum solutions were observed resulting in three distinct regimes. The droplet diameter increased with increasing xanthan gum concentration within each regime but the transition through each critical concentration was accompanied by a significant reduction in the droplet size. Experimental results showed that the droplet formation time decreased exponentially with increasing continuous phase flow rate. It was also found that the formation time was reduced with increasing dispersed phase flow rate. Xanthan gum solutions with a higher concentration within each regime resulted in a longer formation time, and there was a decrease in the formation time at each critical concentration. The formation time consists of growth and breakup stages and the effect of xanthan gum concentration on each stage was examined.
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ASME 2012 Fluids Engineering Division Summer Meeting collocated with the ASME 2012 Heat Transfer Summer Conference and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels
July 8–12, 2012
Rio Grande, Puerto Rico, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-4476-2
PROCEEDINGS PAPER
Investigation on the Droplet Formation Time With Xanthan Gum Solutions at a T-Junction
Zhipeng Gu,
Zhipeng Gu
University of New South Wales Canberra at ADFA, Canberra, ACT, Australia
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Jong-Leng Liow,
Jong-Leng Liow
University of New South Wales Canberra at ADFA, Canberra, ACT, Australia
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Guofeng Zhu
Guofeng Zhu
University of New South Wales Canberra at ADFA, Canberra, ACT, Australia
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Zhipeng Gu
University of New South Wales Canberra at ADFA, Canberra, ACT, Australia
Jong-Leng Liow
University of New South Wales Canberra at ADFA, Canberra, ACT, Australia
Guofeng Zhu
University of New South Wales Canberra at ADFA, Canberra, ACT, Australia
Paper No:
FEDSM2012-72133, pp. 299-307; 9 pages
Published Online:
July 24, 2013
Citation
Gu, Z, Liow, J, & Zhu, G. "Investigation on the Droplet Formation Time With Xanthan Gum Solutions at a T-Junction." Proceedings of the ASME 2012 Fluids Engineering Division Summer Meeting collocated with the ASME 2012 Heat Transfer Summer Conference and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels. Volume 2: Fora. Rio Grande, Puerto Rico, USA. July 8–12, 2012. pp. 299-307. ASME. https://doi.org/10.1115/FEDSM2012-72133
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