Second-mode attenuation and cancellation by porous coatings in a high-speed boundary layer

@inproceedings{Brs2013SecondmodeAA,
  title={Second-mode attenuation and cancellation by porous coatings in a high-speed boundary layer},
  author={Guillaume A. Br{\`e}s and Matthew Inkman and Tim Colonius and Alexander V Fedorov},
  year={2013}
}
Numerical simulations of the linear and nonlinear two-dimensional Navier–Stokes equations, and linear stability theory are used to parametrically investigate hypersonic boundary layers over ultrasonic absorptive coatings. The porous coatings consist of a uniform array of rectangular pores (slots) with a range of porosities and pore aspect ratios. For the numerical simulations, temporally (rather than spatially) evolving boundary layers are considered and we provide evidence that this… CONTINUE READING