Zobrazeno 1 - 10
of 185
pro vyhledávání: '"R.J. Astley"'
Publikováno v:
XXVIII Encontro da SOBRAC.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0bbd8be6866317ecaa56a0b663413d07
https://doi.org/10.17648/sobrac-87129
https://doi.org/10.17648/sobrac-87129
Autor:
Alan McAlpine, R.J. Astley
Publikováno v:
Journal of Sound and Vibration. 331:4609-4628
The Council of European Aerospace Societies (CEAS) Aeroacoustics Specialists Committee (ASC) supports and promotes the interests of the scientific and industrial aeroacoustics community on an European scale and European aeronautics activities interna
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc3ddcc2edb48f3f84fa4b45c8afca7e
https://doi.org/10.1016/j.jsv.2012.05.012
https://doi.org/10.1016/j.jsv.2012.05.012
Publikováno v:
Journal of Sound and Vibration. 330:3832-3845
Novel techniques are presented to reduce noise from turbofan aircraft engines by optimising the acoustic treatment in engine ducts. The application of Computational Aero-Acoustics (CAA) to predict acoustic propagation and absorption in turbofan ducts
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::566bed6b7d2afda2d48a3f99d0f62375
https://doi.org/10.1016/j.jsv.2011.03.022
https://doi.org/10.1016/j.jsv.2011.03.022
Publikováno v:
Procedia IUTAM. 1:143-152
This article reviews the application of Computational Aero-Acoustics (CAA) to the prediction of acoustic propagation in turbofan ducts. The challenge of resolving the radiated sound field for realistic nacelle geometries is discussed and evidence is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::923c734dc5ff7e375d2dcf7bf898b88d
Publikováno v:
Procedia Engineering. 6:143-152
This article reviews the application of Computational Aero-Acoustics (CAA) to the prediction of acoustic propagation in turbofan ducts. The challenge of resolving the radiated sound field for realistic nacelle geometries is discussed and evidence is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ab4a349b6bbc0936b32966c62051e80
Publikováno v:
Procedia IUTAM. 1:183-192
This paper provides a review of several physics-based methods developed for predicting sound propagation in flows. The basic principle of physics-based methods is to incorporate some known properties of the underlying physics into the numerical model
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6fdbad48e7356419bd2a812d34e34140
https://doi.org/10.1016/j.piutam.2010.10.020
https://doi.org/10.1016/j.piutam.2010.10.020
Publikováno v:
Procedia Engineering. 6:183-192
This paper provides a review of several physics-based methods developed for predicting sound propagation in flows. The basic principle of physics-based methods is to incorporate some known properties of the underlying physics into the numerical model
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d8449bb0ecd03b685b7b7a57dea4aec8
https://doi.org/10.1016/j.proeng.2010.09.020
https://doi.org/10.1016/j.proeng.2010.09.020
Publikováno v:
Computer Methods in Applied Mechanics and Engineering. 197:4273-4283
A mapped infinite partition of unity method is developed to solve frequency domain acoustic applications for convected radiation in axisymmetric domains. The paper presents the formulation and the discretization technique. The partition of unity meth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a8a96439df355ac00b0f38468b25ac4
https://doi.org/10.1016/j.cma.2008.05.006
https://doi.org/10.1016/j.cma.2008.05.006
Autor:
R.J. Astley, Gwenael Gabard
Publikováno v:
Journal of Sound and Vibration. 315:1103-1124
A finite element (FE) mode-matching approach is presented for duct acoustics with flow and circumferentially varying liners. The primary application of the method is the prediction of sound attenuation in turbofan inlets and bypass ducts including th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::732e9909d0e7bbef7bbd01d0c31ea748
https://doi.org/10.1016/j.jsv.2008.02.015
https://doi.org/10.1016/j.jsv.2008.02.015
Autor:
Pablo Gamallo, R.J. Astley
Publikováno v:
International Journal for Numerical Methods in Engineering. 71:406-432
Trefftz methods for the numerical solution of partial differential equations (PDEs) on a given domain involve trial functions which are defined in subdomains, are generally discontinuous, and are solutions of the governing PDE (or its adjoint) within
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d112b8cf47fa0fd0718ff35458cf800
https://doi.org/10.1002/nme.1948
https://doi.org/10.1002/nme.1948