Among the several noise-generation mechanisms of airfoil self-noise, trailing-edge bluntness noise is an important source, which caused by vortex shedding at blunt trailing edges. A numerical study on control using bio-inspired wavy leading edges presented in this paper. The high-fidelity, improved, delayed, detached eddy simulation (IDDES) method was used to calculate flow field, and acoustic ...

Several authors have now suggested that some interstellar clouds above the plane of the Galaxy are interacting with the Reynolds’ layer, the warm ionized gas extending well above (H ∼= 910 pc) the Galactic plane (Reynolds 1993). Characterizing the interaction between these clouds and their surroundings should be useful in understanding one source of interstellar turbulence: vertical shear flows...