Trapping and escape of viscous fingers in a soft Hele-Shaw cell
Viscous flow in the narrow gap between a rigid plate and a confined elastic solid has been observed to ‘choke’ at high flow rates, due to the deforming solid making contact with the plate and sealing the gap. When the viscous flow is driven by injection of a gas bubble, the advancing meniscus is sus...
| Main Authors: | , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
American Physical Society
2022
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| _version_ | 1826307832282087424 |
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| author | Peng, GG Cuttle, C Box, F Guan, JH Juel, A Macminn, C Pihler-Puzović, D |
| author_facet | Peng, GG Cuttle, C Box, F Guan, JH Juel, A Macminn, C Pihler-Puzović, D |
| author_sort | Peng, GG |
| collection | OXFORD |
| description | Viscous flow in the narrow gap between a rigid plate and a confined elastic solid has been observed
to ‘choke’ at high flow rates, due to the deforming solid making contact with the plate and sealing
the gap. When the viscous flow is driven by injection of a gas bubble, the advancing meniscus is
susceptible to the viscous-fingering instability. By comparing fingering experiments with axisymmetric numerical simulations, we demonstrate that, depending on the width of the fingers, the
fingering instability can either promote or suppress choking, i.e. cause the system to choke when an
axisymmetric system would not, or vice versa. |
| first_indexed | 2024-03-07T07:10:30Z |
| format | Journal article |
| id | oxford-uuid:3f427c83-673e-4664-a8b3-b18e1a5e820a |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T07:10:30Z |
| publishDate | 2022 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:3f427c83-673e-4664-a8b3-b18e1a5e820a2022-06-17T11:59:22ZTrapping and escape of viscous fingers in a soft Hele-Shaw cellJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:3f427c83-673e-4664-a8b3-b18e1a5e820aEnglishSymplectic ElementsAmerican Physical Society2022Peng, GGCuttle, CBox, FGuan, JHJuel, AMacminn, CPihler-Puzović, DViscous flow in the narrow gap between a rigid plate and a confined elastic solid has been observed to ‘choke’ at high flow rates, due to the deforming solid making contact with the plate and sealing the gap. When the viscous flow is driven by injection of a gas bubble, the advancing meniscus is susceptible to the viscous-fingering instability. By comparing fingering experiments with axisymmetric numerical simulations, we demonstrate that, depending on the width of the fingers, the fingering instability can either promote or suppress choking, i.e. cause the system to choke when an axisymmetric system would not, or vice versa. |
| spellingShingle | Peng, GG Cuttle, C Box, F Guan, JH Juel, A Macminn, C Pihler-Puzović, D Trapping and escape of viscous fingers in a soft Hele-Shaw cell |
| title | Trapping and escape of viscous fingers in a soft Hele-Shaw cell |
| title_full | Trapping and escape of viscous fingers in a soft Hele-Shaw cell |
| title_fullStr | Trapping and escape of viscous fingers in a soft Hele-Shaw cell |
| title_full_unstemmed | Trapping and escape of viscous fingers in a soft Hele-Shaw cell |
| title_short | Trapping and escape of viscous fingers in a soft Hele-Shaw cell |
| title_sort | trapping and escape of viscous fingers in a soft hele shaw cell |
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