Department of Physics · Durham University · United Kingdom
We study non-Newtonian free-surface flows and soft-matter singularities. The group sits at the intersection of applied mathematics, fluid mechanics, and direct numerical simulation, and develops open-source codes and theory for soft-matter phenomena across length and time scales.
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- Drop impact and forces — inertia, viscosity, wettability, and rheology in impact, rebound, and soft-sphere analogues
- Bubbles and singularities — capillary-wave focusing, Worthington jets, and pinch-off in Newtonian and complex fluids
- Sheets and films — hole nucleation, Taylor–Culick retraction, and film rupture
- Open-source DNS — Basilisk C extensions for viscoelastic, viscoplastic, and elastoviscoplastic multiphase flow
Current interests include mycofluidic transport, non-Newtonian effects on hydrodynamic singularities, and respiratory-droplet formation driven by viscoelastic mucus rheology.
| Repository | Focus |
|---|---|
| MultiRheoFlow | Multiphase flows with complex rheology on Basilisk C |
| Viscoelastic3D | Three-dimensional viscoelastic solver extension |
| Viscoelastic Worthington jets | Jets and droplets from bursting viscoelastic bubbles |
| JumpingBubbles | Coalescence-induced bubble jumping |
| basilisk-C | Lab-maintained Basilisk C install and version pin |
| Basilisk-101 | Onboarding notebooks for Basilisk CFD |
- Verschuur, C. I., Oratis, A. T., Sanjay, V., & Snoeijer, J. H. How elasticity affects bubble pinch-off. Phys. Rev. Fluids (2026).
- Appleford, T., Sanjay, V., & Jalaal, M. Rheology of Two-Dimensional Dilute Emulsions. Phys. Rev. Fluids, 11, 033607 (2026).
- Jana, S., Kolinski, J., Lohse, D., & Sanjay, V. Impacting spheres: from liquid drops to elastic beads. Soft Matter, 22, 2226-2236 (2026).
Open science is the default: simulation codes and analysis for papers live in public repositories under this organization.
- Positions and projects: comphy-lab.org/opportunities
- PI: Vatsal Sanjay · vatsal.sanjay@comphy-lab.org
- Discussions: github.com/orgs/comphy-lab/discussions
