This paper studies the impact of installing noise-suppressing deflector vanes in the bypass flow on the aerodynamic performance of the dual-stream supersonic nozzle of a turbofan engine by using a three-dimensional Reynolds-averaged Navier-Stokes computer program. A series of nozzle configurations using a single pair or double pairs of vanes with NACA0012, NACA4412, and NACA7514 airfoil profile...

In 1952, we described a catheterizing bronchoscope (1) which utilized the principle of the cystoscope type of deflector at the distal end of the instrument, for the purpose of diverting a catheter into the desired segmental bronchus of the upper lobes. The instrument has since been simplified and improved by placing a penmanent deflector in the distal end of a Jackson type bronchoscope (Figures...

An acousto-optic deflector with a two-element phased-array piezoelectric transducer is investigated at high diffraction efficiency (close to 100%). Significant broadening of the frequency band (and, thus, the angular scanning range) relative to the well-known low efficiency regime is theoretically predicted and experimentally demonstrated. Experiments with an off-axis deflector based on paratel...

The design of a rocket launch environment is complex process with many different aspects that are highly interconnected. Acoustics, which one these, should be investigated in detail due to possible devastating effects on the vehicle, crew, and environment. This study uses numerical method consider passive noise reduction applied supersonic jet impinging an inclined flame deflector decrease acou...

The research effort is a Reynolds-Averaged Navier-Stokes (RANS) investigation that looks at the flow-field and performance of a bypass ratio 8 nozzle with an external wedgeshaped noise suppressor, simulating the exhaust of a turbofan engine at takeoff conditions. Peak turbulence was reduced by the wedge on the side opposite the deflector, and it was increased in the initial region of the jet be...

The paper is devoted to the study of deflector nozzles rain irrigation machines. selection parameters nozzle artificial sprinkler machines on a scientific and practical basis allows for correct organization ecologically safe irrigation. article presents results research short-distance with deflector.