(ORDO NEWS) — In a study published in the journal Physics of Fluids, scientists have found a way to reduce noise at the rear of a gas turbine engine and improve the aerodynamic parameters of an aircraft. Moreover, this technology was “adopted” from birds – owls.
Owls are able to fly silently. This is achieved due to the fact that their feathers are with a jagged edge. Such notches, located on the leading edge of the wing, are some kind of comb structures that affect the air flow. Better such teeth are developed in nocturnal species of owls.
This feature was noticed by scientists from Xi’an Jiaotong University in China. Based on this, they created a new airfoil design. It reduces the noise of the trailing edge of the gas turbine engine. The results of the study are published in Physics of Fluids.
In addition, during the experiments it turned out that for installation in aircraft it is better to use asymmetrical teeth, rather than symmetrical ones. The latter proved to be less effective.
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