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Original Articles

Characteristic boundary conditions with finite-volume ENO scheme for aeroacoustic simulations

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Pages 1-10 | Received 20 Jul 2006, Accepted 16 Mar 2007, Published online: 25 May 2007
 

Abstract

Characteristic boundary algorithms coupled with high-order modified-flux-approach ENO (essentially non-oscillatory) schemes are proposed in generalized coordinates for the computation of aeroacoustic problems. So far most of the characteristic algorithms have been used along with high-order finite difference schemes. Here in this study finite volume MFA-ENO schemes with characteristic boundary conditions are proposed, and examined to validate the accuracy by applying to several test problems, including the problem of acoustic waves scattered by a circular cylinder and the problem of vortex convection through the outlet boundary. Non-reflecting boundary conditions to prevent acoustic and vorticity waves to be reflected at the boundary are also analysed.

Acknowledgements

The authors would like to acknowledge the grant supported by Japan Society for the Promotion of Science.

Notes

Tel.: +81-52-789-3395. Fax: +81-52-789-3279. [email protected]

Additional information

Notes on contributors

Yoshiaki Nakamura

† † Tel.: +81-52-789-3395. Fax: +81-52-789-3279. [email protected]

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