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Computational fluid dynamics study of three-dimensional, dynamic stall of various planform shapes

Abstract : Numerical simulation of 3-D dynamic stall has been undertaken using computational fluid dynamics. As a first step, validation calculations have been performed for cases in which experimental data were available. Although the amount and quality of the experimental data available for 3-D dynamic stall does not match what is available for 2-D cases, the computational fluid dynamics was found capable of predicting this complex 3-D flow with good Accuracy. Once confidence on the computational fluid dynamics method was established, further calculations were conducted for several wing planforms. The calculations revealed the detailed structure of the 3-D dynamic stall vortex and its interaction with the tip vortex. Remarkably, strong similarities in the flow topology were identified for wings of very different planforms.
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https://hal.archives-ouvertes.fr/hal-01454862
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Submitted on : Friday, February 3, 2017 - 9:46:25 AM
Last modification on : Tuesday, October 19, 2021 - 10:59:02 PM

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A. Spentzos, G. N. Barakos, K. J. Badcock, B. E. Richards, F. N. Coton, et al.. Computational fluid dynamics study of three-dimensional, dynamic stall of various planform shapes. Journal of Aircraft, American Institute of Aeronautics and Astronautics, 2007, 44 (4), pp.1118-1128. ⟨10.2514/1.24331⟩. ⟨hal-01454862⟩

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