ORCID Profile
0000-0002-7848-7176
Current Organisations
University of Queensland
,
The University of Newcastle
Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the Feedback Form.
Publisher: Elsevier BV
Date: 03-2020
Publisher: Elsevier BV
Date: 2014
Publisher: Elsevier BV
Date: 06-2021
Publisher: Elsevier BV
Date: 05-2012
Publisher: Elsevier BV
Date: 04-2012
Publisher: Springer Science and Business Media LLC
Date: 06-2012
Publisher: Elsevier BV
Date: 03-2013
Publisher: Elsevier BV
Date: 06-2019
Publisher: Elsevier BV
Date: 02-2022
Publisher: Elsevier BV
Date: 03-2022
Publisher: American Chemical Society (ACS)
Date: 20-02-2019
DOI: 10.1021/ACS.LANGMUIR.8B04112
Abstract: The rising behavior of bubbles, initially half and fully coated with glass beads of various sizes, was investigated. The bubble velocity, aspect ratio, and oscillation periods were determined using high-speed photography and image analysis. In addition, the acting forces, drag modification factor, and modified drag coefficient were calculated and interpreted. Results show that the aspect ratio oscillation of the rising bubbles is similar, irrespective of the attached particle size. As the particle size is increased, the rising bubbles have a lower velocity and aspect ratio litude, with the time from release to each aspect ratio peak increasing. Higher particle coverage is shown to decrease the bubble velocity and d en the oscillations, reducing the number of aspect ratio peaks observed. The highest rise velocities correspond to the lowest aspect ratios and vice versa, whereas a constant aspect ratio yields a constant rise velocity, independent of the particle size. Force analysis shows that the particle drag modification factor increases with the increased particle size and is greatest for fully laden bubbles. The modified drag coefficient of particle-laden bubbles increases with the increased particle size, although it decreases with the increased Reynolds number independent of the particle size. The drag force exerted by the particles plays a more dominant role in decreasing bubble velocities as the particle size increases. The results and interpretation produced a quantitative description of the behavior of rising particle-laden bubbles and the development of correlations will enhance the modeling of industrial applications.
Publisher: Elsevier BV
Date: 06-2013
Publisher: Elsevier BV
Date: 09-2023
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Peipei Wang.