Humans' initial desire for flight stems from the imitation of flying creatures in nature. The
excellent flight performance of flying animals will inevitably become a source of inspiration …

Owls are an order of birds of prey that are known for the development of a silent flight. We
review here the morphological adaptations of owls leading to silent flight and discuss also …

This paper is concerned with the application of porous treatments as a means of flow and
aerodynamic noise reduction. An extensive experimental investigation is undertaken to …

Strategies for trailing-edge noise control have been inspired by the downy canopy that
covers the surface of exposed flight feathers of many owl species. Previous wind-tunnel …

This paper presents a numerical analysis of an airfoil geometry inspired by the down coat of
the night owl. The objective is to understand the mechanisms of airfoil trailing edge noise …

This paper presents an analytic solution for aerodynamic noise generated by an unsteady
wall pressure gust interacting with a spanwise-variable trailing edge in a background steady …

This study mainly focuses on the structural design, acoustic performance prediction, and
experimental validation of a novel composite sound absorber that is similar to the feather …

Numerical analysis of airfoil geometries inspired by the down coat of the night owl is
presented. The bioinspired geometry consists of an array of'finlet fences', which is placed …

Acoustic resonance induced by vortex sound interaction in a confined space could cause
both noise pollution and acoustic fatigue issues. The mechanism of vortex sound interaction …

The present study investigates owl-inspired propellers with various serrated trailing edge
configurations. An analysis utilizes a numerical model that integrates computational fluid …