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Mathematical Models and Computer Simulations

Erschienen in:

01.02.2023

Numerical Simulation of the Evolution of Turbulent Spots in a Supersonic Boundary Layer over a Plate

verfasst von: I. V. Egorov, A. V. Novikov, P. V. Chuvakhov

Erschienen in: Mathematical Models and Computer Simulations | Ausgabe 1/2023

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Abstract

Direct numerical simulations of the evolution of turbulent spots in the boundary layer on a flat plate at a zero angle of attack at the freestream Mach number M_∞ = 6 are carried out. The propagation of artificially excited localized three-dimensional vortical disturbances with different initial amplitudes, which, when propagating downstream, develop into turbulent spots, is considered. A direct numerical simulation is performed by solving the Navier–Stokes equations for three-dimensional compressible gas flows using the in-house solver that implements an implicit shock capturing numerical scheme. It is shown that the universal quasi-monotonic numerical scheme makes it possible to correctly estimate the main characteristics of turbulent spots: the transverse spreading angle and the velocities of the leading and trailing fronts. The agreement between the parameters of the obtained spots and the results of other authors is demonstrated.

Vorheriger Artikel Numerical Simulation of the Evolution of an Intense Aerodynamic Jet in the Far-Field of Propagation

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Titel: Numerical Simulation of the Evolution of Turbulent Spots in a Supersonic Boundary Layer over a Plate
verfasst von: I. V. Egorov
A. V. Novikov
P. V. Chuvakhov
Publikationsdatum: 01.02.2023
Verlag: Pleiades Publishing
Erschienen in: Mathematical Models and Computer Simulations / Ausgabe 1/2023
Print ISSN: 2070-0482
Elektronische ISSN: 2070-0490
DOI: https://doi.org/10.1134/S2070048223010076

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