Aeroacoustics
Aircraft Engine Studies: Modelling of aircraft sound propagation
A suite of high-order, time-domain computational aeroacoustic programs have been developed to model sound propagation and radiation from airframe components and aero engine intake and bypass/exhaust d....
See Full PostAeroacoustics
Stable time-domain LEE simulations
Linearized Euler equations (LEE) are often used in a CAA simulation, with a strong mean-velocity gradient, numerical Kelvin-Helmholtz (K-H) instabilities may appear using the LEE. Vortical instabiliti....
See Full PostAeroacoustics
Anisotropic filter for synthetic turbulence
A technique of synthetic turbulence is proposed by developing a general form of anisotropic filter, which can realize the desired velocity spectra of three-dimensional anisotropic turbulence. The an....
See Full PostAeroacoustics
The Aeroacoustic Characteristics of a Heaving Airfoil
Airfoil oscillation is a widely observed phenomenon in real applications, such as natural flyers, helicopter and drone blades, etc. This work studies the aeroacoustic characteristics of a heaving ai....
See Full PostAeroacoustics
Non-Reflective Boundary Conditions for CAA
Non-reflective boundary conditions are essential for accurate computational aeroacoustic (CAA) simulations. Benchmark test cases were developed to quantify the reflections generated by outgoing acoust....
See Full Post