Investigation of the ultrasound-induced collapse of air bubbles near soft materials
A numerical investigation into the ultrasound-induced collapse of air bubbles near soft materials, utilizing a novel multi-material diffuse interface method (DIM) model with block-structured adaptive mesh refinement is presented. The present work expands from a previous five-equation DIM by incorpor...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-01-01
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| Series: | Ultrasonics Sonochemistry |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1350417723004352 |
| _version_ | 1797389534108844032 |
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| author | Armand Shams Saeed Bidi Manolis Gavaises |
| author_facet | Armand Shams Saeed Bidi Manolis Gavaises |
| author_sort | Armand Shams |
| collection | DOAJ |
| description | A numerical investigation into the ultrasound-induced collapse of air bubbles near soft materials, utilizing a novel multi-material diffuse interface method (DIM) model with block-structured adaptive mesh refinement is presented. The present work expands from a previous five-equation DIM by incorporating Eulerian hyperelasticity. The model is applicable to any arbitrary number of interacting fluid and solid material. A single conservation law for the elastic stretch tensor enables tracking the deformations for all the solid materials. A series of benchmark cases are conducted, and the solution is found to be in excellent agreement against theoretical data. Subsequently, the ultrasound-induced bubble-tissue flow interactions are examined. The bubble radius was found to play a crucial role in dictating the stresses experienced by the tissue, underscoring its significance in medical applications. The results reveal that soft tissues primarily experience tensile forces during these interactions, suggesting potential tensile-driven injuries that may occur in relevant treatments. Moreover, regions of maximal tensile forces align with tissue elongation areas. It is documented that while early bubble dynamics remain relatively unaffected by changes in shear modulus, at later stages of the penetration processes and the deformation shapes, exhibit notable variations. Lastly, it is demonstrated that decreasing standoff distances enhances the interaction between bubbles and tissue, thereby increasing the stress levels in the tissue, although the behavior of the bubble dynamics remains largely unchanged. |
| first_indexed | 2024-03-08T22:57:23Z |
| format | Article |
| id | doaj.art-4c1594121d884bdfad75f2c702995aa8 |
| institution | Directory Open Access Journal |
| issn | 1350-4177 |
| language | English |
| last_indexed | 2024-03-08T22:57:23Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ultrasonics Sonochemistry |
| spelling | doaj.art-4c1594121d884bdfad75f2c702995aa82023-12-16T06:06:18ZengElsevierUltrasonics Sonochemistry1350-41772024-01-01102106723Investigation of the ultrasound-induced collapse of air bubbles near soft materialsArmand Shams0Saeed Bidi1Manolis Gavaises2School of Science and Technology, City, University of London, UK; Corresponding author.School of Science and Technology, City, University of London, UK; Institut Jean le Rond d’Alembert, Sorbonne Université and CNRS UMR 7190, F-75005 Paris, FranceSchool of Science and Technology, City, University of London, UKA numerical investigation into the ultrasound-induced collapse of air bubbles near soft materials, utilizing a novel multi-material diffuse interface method (DIM) model with block-structured adaptive mesh refinement is presented. The present work expands from a previous five-equation DIM by incorporating Eulerian hyperelasticity. The model is applicable to any arbitrary number of interacting fluid and solid material. A single conservation law for the elastic stretch tensor enables tracking the deformations for all the solid materials. A series of benchmark cases are conducted, and the solution is found to be in excellent agreement against theoretical data. Subsequently, the ultrasound-induced bubble-tissue flow interactions are examined. The bubble radius was found to play a crucial role in dictating the stresses experienced by the tissue, underscoring its significance in medical applications. The results reveal that soft tissues primarily experience tensile forces during these interactions, suggesting potential tensile-driven injuries that may occur in relevant treatments. Moreover, regions of maximal tensile forces align with tissue elongation areas. It is documented that while early bubble dynamics remain relatively unaffected by changes in shear modulus, at later stages of the penetration processes and the deformation shapes, exhibit notable variations. Lastly, it is demonstrated that decreasing standoff distances enhances the interaction between bubbles and tissue, thereby increasing the stress levels in the tissue, although the behavior of the bubble dynamics remains largely unchanged.http://www.sciencedirect.com/science/article/pii/S1350417723004352Fluid-structure interactionEulerian hyperelasticityUltrasoundsBubble dynamicsCavitationDiffuse interface model |
| spellingShingle | Armand Shams Saeed Bidi Manolis Gavaises Investigation of the ultrasound-induced collapse of air bubbles near soft materials Ultrasonics Sonochemistry Fluid-structure interaction Eulerian hyperelasticity Ultrasounds Bubble dynamics Cavitation Diffuse interface model |
| title | Investigation of the ultrasound-induced collapse of air bubbles near soft materials |
| title_full | Investigation of the ultrasound-induced collapse of air bubbles near soft materials |
| title_fullStr | Investigation of the ultrasound-induced collapse of air bubbles near soft materials |
| title_full_unstemmed | Investigation of the ultrasound-induced collapse of air bubbles near soft materials |
| title_short | Investigation of the ultrasound-induced collapse of air bubbles near soft materials |
| title_sort | investigation of the ultrasound induced collapse of air bubbles near soft materials |
| topic | Fluid-structure interaction Eulerian hyperelasticity Ultrasounds Bubble dynamics Cavitation Diffuse interface model |
| url | http://www.sciencedirect.com/science/article/pii/S1350417723004352 |
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