게시일: 2014. 11. 11 오전 8:11:11
Rotor model for coherent inflow noise
- inflow model (Liepmann, Gaussian, von Karman)
- submarine and trail prop. --> coherent inflow noise with stochastic wind model
- asymmetric acoustic loading using Lowson analogy.
- development of FE model.
Rotor model for trailing edge noise using FE model
- Sinayoko's model with FE model: directivity, swishing.
Decomposition and integration of inflow and trailing edge noise for transient Mach number flow
- DES and synthesized turbulence inflow condition w/wo viscosity
- reduced freq. U/L, L: radius leading edge, thickness, BL thickness
- cut-off reduced. freq.