Cartesian Mesh Linearized Euler Equations Solver for Aeroacoustic Problems around Full Aircraft
Joint Authors
Fukushima, Yuma
Nakahashi, Kazuhiro
Sasaki, Daisuke
Source
International Journal of Aerospace Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-18, 18 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-04-30
Country of Publication
Egypt
No. of Pages
18
Abstract EN
The linearized Euler equations (LEEs) solver for aeroacoustic problems has been developed on block-structured Cartesian mesh to address complex geometry.
Taking advantage of the benefits of Cartesian mesh, we employ high-order schemes for spatial derivatives and for time integration.
On the other hand, the difficulty of accommodating curved wall boundaries is addressed by the immersed boundary method.
The resulting LEEs solver is robust to complex geometry and numerically efficient in a parallel environment.
The accuracy and effectiveness of the present solver are validated by one-dimensional and three-dimensional test cases.
Acoustic scattering around a sphere and noise propagation from the JT15D nacelle are computed.
The results show good agreement with analytical, computational, and experimental results.
Finally, noise propagation around fuselage-wing-nacelle configurations is computed as a practical example.
The results show that the sound pressure level below the over-the-wing nacelle (OWN) configuration is much lower than that of the conventional DLR-F6 aircraft configuration due to the shielding effect of the OWN configuration.
American Psychological Association (APA)
Fukushima, Yuma& Sasaki, Daisuke& Nakahashi, Kazuhiro. 2015. Cartesian Mesh Linearized Euler Equations Solver for Aeroacoustic Problems around Full Aircraft. International Journal of Aerospace Engineering،Vol. 2015, no. 2015, pp.1-18.
https://search.emarefa.net/detail/BIM-1064534
Modern Language Association (MLA)
Fukushima, Yuma…[et al.]. Cartesian Mesh Linearized Euler Equations Solver for Aeroacoustic Problems around Full Aircraft. International Journal of Aerospace Engineering No. 2015 (2015), pp.1-18.
https://search.emarefa.net/detail/BIM-1064534
American Medical Association (AMA)
Fukushima, Yuma& Sasaki, Daisuke& Nakahashi, Kazuhiro. Cartesian Mesh Linearized Euler Equations Solver for Aeroacoustic Problems around Full Aircraft. International Journal of Aerospace Engineering. 2015. Vol. 2015, no. 2015, pp.1-18.
https://search.emarefa.net/detail/BIM-1064534
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1064534