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August 1, 2025Physics of Fluids

Influence of Darcy and Reynolds numbers on flow past a porous circular cylinder

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Authors

ZCZepeng ChenYLYingzheng LiuHSHyung Jin Sung

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Overview

Analysis demonstrates wake behavior changes with Darcy and Reynolds numbers, suggesting drag reduction strategies.

Key Points

  • Increasing Reynolds number promotes instability and vortex shedding, extending the shear layer and enhancing through-flow.
  • A detailed mode diagram identifies four wake regimes, including steady flow and a newly observed far-wake shedding mode.
  • The study utilizes a unified one-domain immersed boundary method to analyze flow past a porous circular cylinder.
  • Advancing understanding of flows around porous bluff bodies may improve drag management and flow control in engineering systems.

Cite This Study

Chen et al. (2025) studied this question.

synapsesocial.com/papers/68af5f13ad7bf08b1eae1fd7https://doi.org/10.1063/5.0284671
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