| Issue |
EPJ Web Conf.
Volume 340, 2025
Powders & Grains 2025 – 10th International Conference on Micromechanics on Granular Media
|
|
|---|---|---|
| Article Number | 08016 | |
| Number of page(s) | 4 | |
| Section | Particulate Multiphase Flows and Porous Media | |
| DOI | https://doi.org/10.1051/epjconf/202534008016 | |
| Published online | 01 December 2025 | |
https://doi.org/10.1051/epjconf/202534008016
Transition to turbulence in suspension Taylor-Couette flow
Engineering Mechanics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O, Bengaluru 560064, India
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Published online: 1 December 2025
Abstract
The pattern transition routes to turbulence are explored via experiments in a Taylor-Couette setup for neutrally-buoyant suspensions of non-colloidal particles in the counter-rotation regime. For small counterrotations, the super-critical bifurcation scenario holds, leading to turbulent Taylor vortices (TTV) that are characterized by large-scale stationary toroidal rolls in the background of small-scale structures. At strong counterrotations, however, the primary bifurcation is sub-critical, leading to spiral vortices, and the final bifurcating state represents a featureless turbulent (TUR) state, devoid of large-scale structures. The spectral routes towards TTV and TUR are analysed, and compared with particle-free cases to infer possible roles of inertial particles.
© The Authors, published by EDP Sciences, 2025
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