26th Congress of International Council of the Aeronautical Sciences
including the 8th AIAA Aviation Technology, Integration, and Operations (ATIO) Conference
14 - 19 September 2008, Anchorage, Alaska, USA
Paper ICAS 2008-2.3.1

INTERFACE CONDITIONS OF FINITE-DIFFERENCE COMPACT SCHEMES FOR COMPUTATIONAL AEROACOUSTICS

T. Ikeda, T. Sumi, T. Kurotaki
JAXA, Japan

Keywords: Compact scheme, Computational aeroacoustics, Characteristics condition

This article presents a modificaion on the characteristic-based interface conditions, especially suited to computational aeroacoustics, for the use with a finite-difference compact scheme. Modified wave number analysis shows that the proposed implementation avoids anti-diffusion in large wavenumbers. The validity of current development is demonstrated through a CAA application problem.

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