Kinematics and dynamics of freely rising spheroids at high Reynolds numbers

We experimentally investigate the effect of geometrical anisotropy for buoyant spheroidal particles rising in a still fluid. All other parameters, such as the Galileo number (the ratio of gravitational to viscous forces) $Ga \approx 6000$, the ratio of the particle to fluid density $\varGamma \appro...

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Veröffentlicht in:	Journal of fluid mechanics 2021-02, Vol.912, Article A16
Hauptverfasser:	Will, Jelle B., Mathai, Varghese, Huisman, Sander G., Lohse, Detlef, Sun, Chao, Krug, Dominik
Format:	Artikel
Sprache:	eng
Schlagworte:	Anisotropy Aspect ratio Drag coefficient Drag coefficients Dynamics Fluid dynamics Fluid flow Flutter Geometry Gravity High Reynolds number Inertia JFM Papers Kinematics Moments of inertia Oscillation modes Oscillations Particle motion Pressure distribution Reynolds number Spheres Spheroids Tracking Tumbling
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