Abstract
The behaviour of the flow over a finite blunt plate with square leading and trailing edge corners at moderate Reynolds number is studied by means of a Direct Numerical Simulation. The chord-to-thickness ratio of the plate is 5 and the Reynolds number is \(Re = U_\infty \cdot D / \nu = 3 \times 10^3\) where \(U_\infty \) and D are the free-stream velocity and the thickness, respectively. The flow separates at the leading edge corner develo** in a strong free-shear. The flow reattaches on the solid surface upstream the trailing edge and evolves in typical large-scale shedding beyond it. To the authors knowledge, this is the first time that high-fidelity three-dimensional data are produced to analyze in detail the flow features of such a system. Preliminary results on the flow topology will be presented in this work. In particular, the streamlines of the mean flow and the instantaneous three-dimensional turbulent structures via \(\lambda _2\) vortex criterion will be examinated.
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Leonforte, A., Cimarelli, A., Angeli, D. (2017). Structure of Turbulence in a Flow Around a Rectangular Cylinder. In: Örlü, R., Talamelli, A., Oberlack, M., Peinke, J. (eds) Progress in Turbulence VII. Springer Proceedings in Physics, vol 196. Springer, Cham. https://doi.org/10.1007/978-3-319-57934-4_33
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DOI: https://doi.org/10.1007/978-3-319-57934-4_33
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