Vortical structures behind a transverse jet in a supersonic flow at high jet to crossflow pressure ratios

Asel Beketaeva 1 Pascal Bruel 2, 3 Altynshash Naïmanova 1
1 Instiute of Mathematics (Kazakhstan)
2 LMAP - Laboratoire de Mathématiques et de leurs Applications [Pau]
3 CAGIRE - Computational Approximation with discontinous Galerkin methods and compaRison with Experiments
LMAP - Laboratoire de Mathématiques et de leurs Applications [Pau], Inria Bordeaux - Sud-Ouest
Abstract : A three-dimensional supersonic turbulent flow with symmetric normal injection of circular jets from the channel walls is numerically simulated. The initial Favre-averaged Navier–Stokes equations closed by the k–ω turbulence model are solved by an algorithm based on an ENO scheme. The mechanism of the formation of vortical structures due to the interaction of the jet with the free stream is studied for jet to crossflow total pressure ratios ranging from 3 to 50. It is known from experiments reported in the literature that, for n 10, mixing of the jet with the high-velocity flow leads to the formation of a pair of vortices and of an additional separation zone near the wall behind the jet. It is demonstrated that the present numerical results are consistent with such findings and that the pressure distribution on the wall ahead of the jet in the plane of symmetry is also in reasonable agreement with available experimental data.
Keywords : shock wave. Navier–Stokes equations jet pressure ratio numerical simulation supersonic flow perfect gas boundary layer
Type de document :
Article dans une revue
Journal of Applied Mechanics and Technical Physics, Springer Verlag, 2015, 56 (5), pp.12
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https://hal.inria.fr/hal-01253886
Contributeur : Pascal Bruel <>
Soumis le : lundi 11 janvier 2016 - 15:00:08
Dernière modification le : mardi 23 octobre 2018 - 14:50:04

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Asel Beketaeva, Pascal Bruel, Altynshash Naïmanova. Vortical structures behind a transverse jet in a supersonic flow at high jet to crossflow pressure ratios. Journal of Applied Mechanics and Technical Physics, Springer Verlag, 2015, 56 (5), pp.12. 〈hal-01253886〉

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