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Structure of Turbulence in a Flow Around a Rectangular Cylinder

  • Adriano LeonforteEmail author
  • Andrea Cimarelli
  • Diego Angeli
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 196)

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 developing 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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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  • Adriano Leonforte
    • 1
    Email author
  • Andrea Cimarelli
    • 1
  • Diego Angeli
    • 1
  1. 1.DISMIUniversity of Modena and Reggio EmiliaReggio EmiliaItaly

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