Add to ORKGA nonlinearly stacked low noise turbofan stator vane having a characteristic curve that is characterized by a nonlinear sweep and a nonlinear lean is provided. The stator is in an axial fan or compressor turbomachinery stage that is comprised of a collection of vanes whose highly three-dimensional shape is selected to reduce rotor-stator and rotor-strut interaction noise while maintaining the aerodynamic and mechanical performance of the vane. The nonlinearly stacked low noise turbofan stator vane reduces noise associated with the fan stage of turbomachinery to improve environmental compatibility
Acoustic tests were conducted on a high tip speed (1550 ft/sec, 472.44 m/sec) single stage fan with ...
Noise measurements of small scale helicopter rotor models were compared with noise measurements of f...
A small scale, high speed turbomachine is described, as well as a process for manufacturing the turb...
The low pressure turbine for the energy efficient engine is a five-stage configuration with moderate...
A limited study has been conducted to establish the performance and noise characteristics of a low d...
Disclosed is a system for suppressing vibration and noise mitigation in structures such as blades in...
Computer programs were developed which calculate the in-duct acoustic modes excited by a fan/stator ...
Two quiet engine program half scale fans one with a subsonic and the other with a supersonic fan tip...
A variable area nozzle comprising a concentric support and a plurality of convexly contoured self se...
Full-scale low-tip-speed fans, a full-scale high-tip-speed fan, scale model versions of fans, and tw...
A model TFE731-1 engine was used as a baseline for the NASA quiet clean general aviation turbofan en...
Concepts selected to reduce fan generated noise in a turbofan are presented. Near-sonic flow at the ...
A two-stage fan was designed to reduce noise 20 db below current requirements. The first-stage rotor...
The demand in Micro–Air Vehicles (MAV) is increasing as well as their potential missions. Either for...
A scale model of the bypass flow region of a 1.5 pressure ratio, single stage, low tip speed fan was...
Acoustic tests were conducted on a high tip speed (1550 ft/sec, 472.44 m/sec) single stage fan with ...
Noise measurements of small scale helicopter rotor models were compared with noise measurements of f...
A small scale, high speed turbomachine is described, as well as a process for manufacturing the turb...
The low pressure turbine for the energy efficient engine is a five-stage configuration with moderate...
A limited study has been conducted to establish the performance and noise characteristics of a low d...
Disclosed is a system for suppressing vibration and noise mitigation in structures such as blades in...
Computer programs were developed which calculate the in-duct acoustic modes excited by a fan/stator ...
Two quiet engine program half scale fans one with a subsonic and the other with a supersonic fan tip...
A variable area nozzle comprising a concentric support and a plurality of convexly contoured self se...
Full-scale low-tip-speed fans, a full-scale high-tip-speed fan, scale model versions of fans, and tw...
A model TFE731-1 engine was used as a baseline for the NASA quiet clean general aviation turbofan en...
Concepts selected to reduce fan generated noise in a turbofan are presented. Near-sonic flow at the ...
A two-stage fan was designed to reduce noise 20 db below current requirements. The first-stage rotor...
The demand in Micro–Air Vehicles (MAV) is increasing as well as their potential missions. Either for...
A scale model of the bypass flow region of a 1.5 pressure ratio, single stage, low tip speed fan was...
Acoustic tests were conducted on a high tip speed (1550 ft/sec, 472.44 m/sec) single stage fan with ...
Noise measurements of small scale helicopter rotor models were compared with noise measurements of f...
A small scale, high speed turbomachine is described, as well as a process for manufacturing the turb...