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July 24, 2026Journal of Fluids Engineering

Unsteady Wake Dynamics Behind a Sphere: A Computational and Visual Study

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Authors

PEPhilipp EppleMFManuel FritscheIMIvana Milanovic

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Overview

Computational study reveals evolving wake dynamics in a sphere at varying Reynolds numbers, indicating turbulence onset.

Key Points

  • This study investigates the transitions in wake dynamics behind a sphere as the Reynolds number increases.
  • Utilized computational approaches including large eddy simulations (LES) to analyze wake behavior.
  • Examined the unsteady vortex structures at moderate Reynolds numbers and during the drag crisis.
  • Identified the progression from steady axisymmetric recirculation to a turbulent three-dimensional wake.
  • Visualized the structure of the Taneda vortex as distinct during the drag crisis.

Cite This Study

Epple et al. (2026) studied this question.

synapsesocial.com/papers/6a630150395161722cd15fe7https://doi.org/10.1115/1.4072332
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