Airfoil noise computation use high-order schemes

Wei Jun Zhu (Invited author), Wen Zhong Shen (Invited author), Jens Nørkær Sørensen (Invited author)

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Abstract

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.
Original languageEnglish
Title of host publicationEWEC 2007
Publication date2007
Publication statusPublished - 2007
Event2007 European Wind Energy Conference and Exhibition - Milan, Italy
Duration: 7 May 200710 May 2007

Conference

Conference2007 European Wind Energy Conference and Exhibition
CountryItaly
CityMilan
Period07/05/200710/05/2007

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