Gas-liquid hydrodynamics of a fractal flow mixer
Gas-liquid hydrodynamics of a micro-structured device (fractal flow mixer) was experimentally investigated. Experiments were conducted for a range of liquid-to-gas superficial velocity ratios (VSL/VSG). High-speed imaging was used to identify the flow regimes inside the microchannels of the device a...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
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2023
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| Online Access: | http://purl.org/au-research/grants/arc/LP160101181 http://hdl.handle.net/20.500.11937/96014 |
| _version_ | 1848766073685409792 |
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| author | Priyambodo, Muhammad Bhatelia, Tejas Shah, Milin Patel, J. Mazur, M. Pareek, Vishnu |
| author_facet | Priyambodo, Muhammad Bhatelia, Tejas Shah, Milin Patel, J. Mazur, M. Pareek, Vishnu |
| author_sort | Priyambodo, Muhammad |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Gas-liquid hydrodynamics of a micro-structured device (fractal flow mixer) was experimentally investigated. Experiments were conducted for a range of liquid-to-gas superficial velocity ratios (VSL/VSG). High-speed imaging was used to identify the flow regimes inside the microchannels of the device at different VSL/VSG. At different VSL/VSG, two or more flow regimes were observed simultaneously in different micro-channels. Consequently, a new flow regime map was developed. An optical probe was used to measure the bubble mean size and velocity. The effect of the VSL/VSG towards the bubble mean size, mean velocity, and frequency were analyzed. The bubble mean size decreases with the increase of the VSL/VSG, which can be attributed to the uniform shearing of gas slugs across all channels. To check the consistency of the fractal flow mixer in producing gas bubbles over a single experiment run, the global relative standard deviation (RSD) was used. The fractal flow mixer was able to generate equal flow distribution across the 16 outlets and maintain a Taylor flow over a range of VSL/VSG. However, depending on the VSL/VSG, the GB and GS vary to a certain extent, governed by the capillary effect and the back-pressure. |
| first_indexed | 2025-11-14T11:45:21Z |
| format | Journal Article |
| id | curtin-20.500.11937-96014 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T11:45:21Z |
| publishDate | 2023 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-960142024-11-07T02:21:38Z Gas-liquid hydrodynamics of a fractal flow mixer Priyambodo, Muhammad Bhatelia, Tejas Shah, Milin Patel, J. Mazur, M. Pareek, Vishnu Gas-liquid hydrodynamics of a micro-structured device (fractal flow mixer) was experimentally investigated. Experiments were conducted for a range of liquid-to-gas superficial velocity ratios (VSL/VSG). High-speed imaging was used to identify the flow regimes inside the microchannels of the device at different VSL/VSG. At different VSL/VSG, two or more flow regimes were observed simultaneously in different micro-channels. Consequently, a new flow regime map was developed. An optical probe was used to measure the bubble mean size and velocity. The effect of the VSL/VSG towards the bubble mean size, mean velocity, and frequency were analyzed. The bubble mean size decreases with the increase of the VSL/VSG, which can be attributed to the uniform shearing of gas slugs across all channels. To check the consistency of the fractal flow mixer in producing gas bubbles over a single experiment run, the global relative standard deviation (RSD) was used. The fractal flow mixer was able to generate equal flow distribution across the 16 outlets and maintain a Taylor flow over a range of VSL/VSG. However, depending on the VSL/VSG, the GB and GS vary to a certain extent, governed by the capillary effect and the back-pressure. 2023 Journal Article http://hdl.handle.net/20.500.11937/96014 10.1016/j.cep.2023.109558 http://purl.org/au-research/grants/arc/LP160101181 https://creativecommons.org/licenses/by/4.0/ fulltext |
| spellingShingle | Priyambodo, Muhammad Bhatelia, Tejas Shah, Milin Patel, J. Mazur, M. Pareek, Vishnu Gas-liquid hydrodynamics of a fractal flow mixer |
| title | Gas-liquid hydrodynamics of a fractal flow mixer |
| title_full | Gas-liquid hydrodynamics of a fractal flow mixer |
| title_fullStr | Gas-liquid hydrodynamics of a fractal flow mixer |
| title_full_unstemmed | Gas-liquid hydrodynamics of a fractal flow mixer |
| title_short | Gas-liquid hydrodynamics of a fractal flow mixer |
| title_sort | gas-liquid hydrodynamics of a fractal flow mixer |
| url | http://purl.org/au-research/grants/arc/LP160101181 http://hdl.handle.net/20.500.11937/96014 |