When the pressure fluctuations caused by turbulence vorticity in the boundary layer are
scattered by a sharp trailing edge, acoustic energy is generated and propagated to the far …

In the last decade, the drone market has grown rapidly for both civil and military purposes.
Due to their versatility, the demand for drones is constantly increasing, with several industrial …

The noise generation and flow characteristics of a forced-transitioned NACA 0012 airfoil with
a micro-tube porous trailing edge and its solid counterpart have been numerically …

This paper presents a sensitivity and parametric study of the sound generation at the non-
tortuous and wall-normal permeable trailing edge of an aerofoil. Design parameters for the …

An experimental study on broadband noise scattered by permeable trailing edges with
different pore arrangements is performed. A NACA 0018 airfoil with chord c= 0.2 m is …

The application of open-porous materials is a possible method to effectively reduce the
aerodynamic noise of an airfoil. However, the porous consistency may have a negative …

T boundary layer trailing-edge (TBL-TE) noise is a major contributor to the overall
broadband noise generated by modern wind turbines [1] and airframe noise for aircraft [2] …

Porous materials have been widely investigated as a mean for noise reduction. Numerical
simulations can be used to investigate the physical mechanisms responsible for noise …

This paper investigates the noise emissions from thin airfoils experimentally. An attempt has
been made to study the effect of line distribution of 3 mm diameter holes adjacent to the …

A common component responsible for unwanted noise in low Mach number flows is the
airfoil. Airfoil noise, produced when unsteady fluid flow interacts with an airfoil surface, is …