... 10 2009 19 01 2011 26 07 2011 26 07 2011 acoustic field aeroacoustics aerodynamics anechoic chambers (acoustic) blades fans microphones noise abatement vortices As prevailing noise regulations become more stringent, the blade design of modern...

... complex with interactions of vortices shed from various locations along the chord of the airfoil. At a low angle of attack and a low Strouhal number, increasing reduced frequency results in a decrease and an increase in the mean sectional lift and drag coefficients, respectively. Also, at a low angle...

... these differences and similarities, the implied errors when the in-line DOF is neglected, and the feasibility of using a single mass-damping parameter to describe the FIV. 10 05 2009 13 01 2010 15 07 2010 15 07 2010 density drag shapes (structures) vibrations vortices Besides...

...) vortices jets Navier-Stokes equations force Labyrinth seals are widely used in turbomachinery to minimize secondary leakage inside turbomachinery, including gas turbines and compressors. Accurate leakage prediction is vital for reliable performance prediction. The large gas pressure of high...