High-order finite difference schemes with at least 4th-order spatial accuracy are used to simulate aerodynamically generated noise. The aeroacoustic solver with 4th-order up to 8th-order accuracy is implemented into the in-house flow solver, EllipSys2D/3D. Dispersion-Relation-Preserving (DRP) finite difference schemes and optimized high-order compact finite difference schemes are applied for acoustic computation. Acoustic equations are derived using so-called splitting technique by separating the compressible NS equations into viscous (flow equation) and inviscid (acoustic equation) parts. The viscous flow equations are solved using EllipSys2D/3D, the hydrodynamic variables are used as input to the inviscid acoustic equations at same time step.
|Title of host publication||EWEC 2007|
|Publication status||Published - 2007|
|Event||2007 European Wind Energy Conference and Exhibition - Milan, Italy|
Duration: 7 May 2007 → 10 May 2007
|Conference||2007 European Wind Energy Conference and Exhibition|
|Period||07/05/2007 → 10/05/2007|