It is shown in the literature that Tollmien−Schlichting waves can be damped and transition delayed by a proper modulation of the streamwise velocity in a boundary layer (BL), which can be obtained using miniature vortex generators (MVGs). Experiments show that the amplitude of TS waves is not always monotonically damped past the MVGs. In this study, direct numerical simulations and local stability analysis have been performed in order to provide an interpretation of the experiments and to characterize further the stabilization mechanism induced by this type of control. (© 2015 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim)

Stability analysis of the flow past miniature vortex generators in a Blasius boundary layer / Siconolfi, Lorenzo; Camarri, Simone; Fransson, Jens H. M.. - In: PROCEEDINGS IN APPLIED MATHEMATICS AND MECHANICS. - ISSN 1617-7061. - 15:1(2015), pp. 485-486. ((Intervento presentato al convegno PAMM: 86th Annual Meeting of the International Association of Applied Mathematics and Mechanics.

Stability analysis of the flow past miniature vortex generators in a Blasius boundary layer

SICONOLFI, LORENZO;CAMARRI, SIMONE;
2015

Abstract

It is shown in the literature that Tollmien−Schlichting waves can be damped and transition delayed by a proper modulation of the streamwise velocity in a boundary layer (BL), which can be obtained using miniature vortex generators (MVGs). Experiments show that the amplitude of TS waves is not always monotonically damped past the MVGs. In this study, direct numerical simulations and local stability analysis have been performed in order to provide an interpretation of the experiments and to characterize further the stabilization mechanism induced by this type of control. (© 2015 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim)
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11568/763438
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