High‐Speed 3D Imaging of Multiphase Systems: Applying SCAPE Microscopy to Analog Experiments in Volcanology and Earth Sciences
Abstract Multiphase suspensions are complex systems where microscopic interactions between suspended bubbles, particles, and liquids can significantly alter bulk behavior. Observing the internal mechanics of such suspensions can help constrain the dynamics of natural multiphase flows. To capture thes...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-03-01
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| Series: | Geochemistry, Geophysics, Geosystems |
| Subjects: | |
| Online Access: | https://doi.org/10.1029/2020GC009410 |
| _version_ | 1827771617753694208 |
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| author | J. Oppenheimer K. Patel A. Lindoo E. M. C. Hillman E. Lev |
| author_facet | J. Oppenheimer K. Patel A. Lindoo E. M. C. Hillman E. Lev |
| author_sort | J. Oppenheimer |
| collection | DOAJ |
| description | Abstract Multiphase suspensions are complex systems where microscopic interactions between suspended bubbles, particles, and liquids can significantly alter bulk behavior. Observing the internal mechanics of such suspensions can help constrain the dynamics of natural multiphase flows. To capture these internal processes at high speed and in three dimensions, we propose the use of Swept Confocally Aligned Planar Excitation (SCAPE) microscopy in analog experiments. This imaging technique, developed for neuroscience and biology, uses a sweeping light sheet to illuminate and image fluorophores within a sample. We performed experiments using water and various oils as the liquid phases, glass or PMMA particles for solids, and air or CO2 for gas, which we imaged at rates >50 volumes per second, over a volume size of ∼1 × 1 × 0.4 mm. We focused on three case studies: (1) bubble nucleation, growth, and rise in sparkling water, where we found that bubble detachment from angular PMMA particles left residual bubbles that also grew and detached, generating more bubbles compared to smooth particles; (2) flow of immiscible liquids (water droplets suspended in canola oil) in a porous matrix of PMMA beads, which highlighted the importance of pore and throat sizes on droplet velocities; and (3) injection of air bubbles into concentrated suspensions of glass beads or crushed PMMA particles in a refractive‐index‐matched liquid, which revealed particle motion and strong alterations of the bubble shape. We conclude that SCAPE microscopy is a powerful tool to study the dynamics of multiphase systems. |
| first_indexed | 2024-03-11T12:57:48Z |
| format | Article |
| id | doaj.art-b1aff25ef78e44cfaeb5470dae3e6116 |
| institution | Directory Open Access Journal |
| issn | 1525-2027 |
| language | English |
| last_indexed | 2024-03-11T12:57:48Z |
| publishDate | 2021-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geochemistry, Geophysics, Geosystems |
| spelling | doaj.art-b1aff25ef78e44cfaeb5470dae3e61162023-11-03T17:00:24ZengWileyGeochemistry, Geophysics, Geosystems1525-20272021-03-01223n/an/a10.1029/2020GC009410High‐Speed 3D Imaging of Multiphase Systems: Applying SCAPE Microscopy to Analog Experiments in Volcanology and Earth SciencesJ. Oppenheimer0K. Patel1A. Lindoo2E. M. C. Hillman3E. Lev4Lamont‐Doherty Earth Observatory Columbia University Palisades NY USADepartment of Biomedical Engineering Columbia University New York NY USASchool of Earth Sciences University of Bristol Bristol UKDepartment of Biomedical Engineering Columbia University New York NY USALamont‐Doherty Earth Observatory Columbia University Palisades NY USAAbstract Multiphase suspensions are complex systems where microscopic interactions between suspended bubbles, particles, and liquids can significantly alter bulk behavior. Observing the internal mechanics of such suspensions can help constrain the dynamics of natural multiphase flows. To capture these internal processes at high speed and in three dimensions, we propose the use of Swept Confocally Aligned Planar Excitation (SCAPE) microscopy in analog experiments. This imaging technique, developed for neuroscience and biology, uses a sweeping light sheet to illuminate and image fluorophores within a sample. We performed experiments using water and various oils as the liquid phases, glass or PMMA particles for solids, and air or CO2 for gas, which we imaged at rates >50 volumes per second, over a volume size of ∼1 × 1 × 0.4 mm. We focused on three case studies: (1) bubble nucleation, growth, and rise in sparkling water, where we found that bubble detachment from angular PMMA particles left residual bubbles that also grew and detached, generating more bubbles compared to smooth particles; (2) flow of immiscible liquids (water droplets suspended in canola oil) in a porous matrix of PMMA beads, which highlighted the importance of pore and throat sizes on droplet velocities; and (3) injection of air bubbles into concentrated suspensions of glass beads or crushed PMMA particles in a refractive‐index‐matched liquid, which revealed particle motion and strong alterations of the bubble shape. We conclude that SCAPE microscopy is a powerful tool to study the dynamics of multiphase systems.https://doi.org/10.1029/2020GC009410analog experimentsmagmamicroscopymultiphase flows |
| spellingShingle | J. Oppenheimer K. Patel A. Lindoo E. M. C. Hillman E. Lev High‐Speed 3D Imaging of Multiphase Systems: Applying SCAPE Microscopy to Analog Experiments in Volcanology and Earth Sciences Geochemistry, Geophysics, Geosystems analog experiments magma microscopy multiphase flows |
| title | High‐Speed 3D Imaging of Multiphase Systems: Applying SCAPE Microscopy to Analog Experiments in Volcanology and Earth Sciences |
| title_full | High‐Speed 3D Imaging of Multiphase Systems: Applying SCAPE Microscopy to Analog Experiments in Volcanology and Earth Sciences |
| title_fullStr | High‐Speed 3D Imaging of Multiphase Systems: Applying SCAPE Microscopy to Analog Experiments in Volcanology and Earth Sciences |
| title_full_unstemmed | High‐Speed 3D Imaging of Multiphase Systems: Applying SCAPE Microscopy to Analog Experiments in Volcanology and Earth Sciences |
| title_short | High‐Speed 3D Imaging of Multiphase Systems: Applying SCAPE Microscopy to Analog Experiments in Volcanology and Earth Sciences |
| title_sort | high speed 3d imaging of multiphase systems applying scape microscopy to analog experiments in volcanology and earth sciences |
| topic | analog experiments magma microscopy multiphase flows |
| url | https://doi.org/10.1029/2020GC009410 |
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