Giulio Fogli Rota, Daulet Izbassarov
Elastic turbulence (ET) in straight geometries has been extensively studied in idealised configurations such as periodic shear and planar channel flow, yet experiments are typically restricted to confined systems like ducts and pipes. This study investigates the onset of chaotic elastic fluctuations in both ducts and pipes to understand their dynamics and geometric constraints. The objective is to establish the notion that ET can be a geometry-independent attractor. Utilizing experimental observations and simulations, we demonstrate the transitions to sustained chaotic dynamics in straight geometries. Our methodology involves analyzing the flow characteristics in both specified shapes and tracking the transition mechanisms at play. The results indicate that chaotic dynamics in both systems correspond to the same ET state found in idealised settings. This evidence promotes a distinctive transition mechanism for pipes and confirms the geometry-independence of ET. Overall, this research provides significant insights into the nature of elastic turbulence and expands the understanding of fluid dynamics in confined geometries.
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title={2026 FoggiRota Elastic Turbulence Confined Geometries},
author={Giulio Fogli Rota and Daulet Izbassarov},
year={2026},
language={en}
}TY - JOUR TI - 2026 FoggiRota Elastic Turbulence Confined Geometries AU - Giulio Fogli Rota AU - Daulet Izbassarov PY - 2026 LA - en ER -
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