ArticleJournal of fluid mechanics2019
Upstream vortex and elastic wave in the viscoelastic flow around a confined cylinder.
Article in Journal of fluid mechanics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- How Viscoelastic Effects Impact Polymer Fluid Flow in Porous Media.Transport in porous media · 2026Article
- Geometry-Dependent Elastic Flow Dynamics in Micropillar Arrays.Micromachines · 2024Article
- Using symmetry to control viscoelastic waves in pillar arrays.RSC advances · 2023Article
- Numerical Study on the Unstable Flow Dynamics of Wormlike Micellar Solutions past a Sphere in the Creeping Flow Regime.Polymers · 2023Article
- Effect of blockage ratio on flow of a viscoelastic wormlike micellar solution past a cylinder in a microchannel.Soft matter · 2022Article
- A small-volume microcapillary rheometer.Rheologica acta · 2022Article
- Elastic turbulence generates anomalous flow resistance in porous media.Science advances · 2021Article
- Bifurcations in flows of complex fluids around microfluidic cylinders.Lab on a chip · 2021Review
- Stagnation points control chaotic fluctuations in viscoelastic porous media flow.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Three-dimensional structures and symmetry breaking in viscoelastic cross-channel flow.Soft matter · 2020Article
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
The viscoelastic flow past a cylinder is a classic benchmark problem that is not completely understood. Using novel 3D holographic particle velocimetry, we report three main discoveries of the elastic instability upstream of a single cylinder in viscoelastic channel flow. First, we observe that upstream vortices initiate at the corner between the cylinder and the wall and grow with increasing flow rate. Second, beyond a critical Weissenberg, the flow upstream becomes unsteady and switches between two bistable configurations, leading to symmetry breaking in the cylinder axis direction that is highly three-dimensional in nature. Lastly, we find that the disturbance of the elastic instability propagates relatively far upstream via an elastic wave, and is weakly correlated with that in the cylinder wake. The wave speed and the extent of the instability increase with Weissenberg number, indicating an absolute instability in viscoelastic fluids.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.