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Journal Articles Comptes rendus de l’Académie des sciences. Série IIb, Mécanique Year : 2001

Identification of concentrated structures in slightly compressible flows

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Abstract

In this paper, different vortex diagnostic methods are compared to obtain a better understanding of boundary layer influence on the transport of vortical structures involving a complete analysis of vorticity, the Vorticity Threshold Criterion (VTC), and the Weiss Criterion (WC). These three techniques are basically confronted to find a suitable understanding of all flow characteristics for a range of laminar to transitional Reynolds numbers. The computations on this dihedral plane are done using a 2D DNS method. The Weiss criterion, coming from the analysis of the incompressible Euler equations is validated and applied to low speed compressible flows (Mach number=0.2).
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hal-00768716 , version 1 (02-12-2022)

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Attribution - NonCommercial - CC BY 4.0

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Emmanuel Creusé, Iraj Mortazavi. Identification of concentrated structures in slightly compressible flows. Comptes rendus de l’Académie des sciences. Série IIb, Mécanique, 2001, 329 (1-7), ⟨10.1016/S1620-7742(01)01388-5⟩. ⟨hal-00768716⟩
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