Experimental investigations of the flow around an elliptic cylinder of axis ratio 1:3 were carried out for several angles of attack in a wide range of Reynolds number. The flow characteristics were studied by measuring the fluid forces and the surface pressure. In the critical Reynolds number regime, a discontinuous change of flow state was observed. This change was accompanied by the remarkable hysteresis phenomenon. Details of this hysteresis process are described in the paper.
Hysteresis of Flow Around an Elliptic Cylinder in Critical Reynolds Number Regime
Ota, T, Takahashi, S, & Yoshikawa, H. "Hysteresis of Flow Around an Elliptic Cylinder in Critical Reynolds Number Regime." Proceedings of the ASME 2005 Fluids Engineering Division Summer Meeting. Volume 2: Fora. Houston, Texas, USA. June 19–23, 2005. pp. 155-160. ASME. https://doi.org/10.1115/FEDSM2005-77236
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