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NUMERICAL SIMULATION OF THE EFFECT OF ACOUSTICWAVE INCLINATION ANGLE ON A HYPERSONIC BOUNDARY-LAYER RECEPTIVITY

Volumen 41, Edición 3, 2010, pp. 269-284
DOI: 10.1615/TsAGISciJ.v41.i3.30
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SINOPSIS

Receptivity of a hypersonic boundary layer (free-stream Mach number M = 6) is investigated in terms of numerical simulation of Navier-Stokes equations (direct numerical simulation) for twodimensional unsteady flows over a flat plate with a sharp leading edge. Physical mechanisms of the receptivity to two-dimensional monochromatic slow and fast acoustic waves within a wide range of inclination angles to the plate surface are considered. The shock wave, which is formed near the leading edge, produces a profound effect on the acoustic near-field and the receptivity process due to the viscous-inviscid interaction. Interaction of several factors (acoustic field, interference of acoustic waves with a shock wave, penetration of acoustic waves into the boundary layer, synchronization of acoustic waves with an unstable mode in the boundary layer) leads to a non-monotonic dependency of the receptivity level on the inclination angle of the acoustic wave at given parameters of the boundary layer.

CITADO POR
  1. Soudakov Vitaly, Fedorov Alexander, Ryzhov Alexander, DNS and the theory of receptivity of a supersonic boundary layer to free-stream disturbances, Journal of Physics: Conference Series, 318, 3, 2011. Crossref

  2. Fedorov A. V., Ryzhov A. A., Soudakov V. G., Utyuzhnikov S. V., Receptivity of a high-speed boundary layer to temperature spottiness, Journal of Fluid Mechanics, 722, 2013. Crossref

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