Experimental analysis of Rayleigh‐Bénard convection in the weakly elastic regime : insights from water‐based liquid bridges

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Aljanadi, Ahmed and Oliveira, Monica and Lappa, Marcello (2025) Experimental analysis of Rayleigh‐Bénard convection in the weakly elastic regime : insights from water‐based liquid bridges. In: 38th Scottish Fluid Mechanics Meeting, 2025-05-28 - 2025-05-28.

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Abstract

This study investigates experimentally the weakly elastic regime (WER) of Rayleigh‐Bénard convection, a domain that remains significantly underexplored in comparison to its extensively studied Newtonian counterpart. Of particular interest is the nature of the primary flow bifurcation from the purely diffusive, motionless state. In the WER, the first bifurcation is known to be stationary, a feature that stands in contrast to certain regimes observed in strongly elastic fluids.

ORCID iDs

Aljanadi, Ahmed, Oliveira, Monica ORCID logoORCID: https://orcid.org/0000-0002-1836-4692 and Lappa, Marcello ORCID logoORCID: https://orcid.org/0000-0002-0835-3420;
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