Emergence of Purely Elasto-Plastic Turbulence in Shear Flows
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arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2026
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| _version_ | 1866911374673707008 |
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| author | Abdullah, Muhammad Pradeep, Shravan Jerolmack, Doug J. Thomases, Becca Arratia, Paulo E. |
| author_facet | Abdullah, Muhammad Pradeep, Shravan Jerolmack, Doug J. Thomases, Becca Arratia, Paulo E. |
| contents | We observe the emergence of a distinct, elasticity-driven flow state in a yield-stress fluid in the absence of inertia. Numerical simulations show that this elasto-plastic turbulent state is characterized by a broad spectrum of fluctuations in velocity and stress. Results show a non-monotonic relationship between the volume fraction of the unyielded flow and plasticity. Surprisingly, we find that above a critical value of plasticity, the system can fluidize. Our results reveal the complex interplay between elasticity and plasticity in simple shear flows, indicating that plasticity can enhance rather than hinder momentum transport. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_08992 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Emergence of Purely Elasto-Plastic Turbulence in Shear Flows Abdullah, Muhammad Pradeep, Shravan Jerolmack, Doug J. Thomases, Becca Arratia, Paulo E. Fluid Dynamics We observe the emergence of a distinct, elasticity-driven flow state in a yield-stress fluid in the absence of inertia. Numerical simulations show that this elasto-plastic turbulent state is characterized by a broad spectrum of fluctuations in velocity and stress. Results show a non-monotonic relationship between the volume fraction of the unyielded flow and plasticity. Surprisingly, we find that above a critical value of plasticity, the system can fluidize. Our results reveal the complex interplay between elasticity and plasticity in simple shear flows, indicating that plasticity can enhance rather than hinder momentum transport. |
| title | Emergence of Purely Elasto-Plastic Turbulence in Shear Flows |
| topic | Fluid Dynamics |
| url | https://arxiv.org/abs/2601.08992 |