@Article{CiCP-20-1,
author = {Hüppe , AndreasCohen , GaryImperiale , Sébastien and Kaltenbacher , Manfred},
title = {Construction and Analysis of an Adapted Spectral Finite Element Method to Convective Acoustic Equations},
journal = {Communications in Computational Physics},
year = {2018},
volume = {20},
number = {1},
pages = {1--22},
abstract = {<p style="text-align: justify;">The paper addresses the construction of a non spurious mixed spectral finite
element (FE) method to problems in the field of computational aeroacoustics. Based
on a computational scheme for the conservation equations of linear acoustics, the extension
towards convected wave propagation is investigated. In aeroacoustic applications,
the mean flow effects can have a significant impact on the generated sound
field even for smaller Mach numbers. For those convective terms, the initial spectral
FE discretization leads to non-physical, spurious solutions. Therefore, a regularization
procedure is proposed and qualitatively investigated by means of discrete eigenvalues
analysis of the discrete operator in space. A study of convergence and an application
of the proposed scheme to simulate the flow induced sound generation in the process
of human phonation underlines stability and validity.</p>},
issn = {1991-7120},
doi = {https://doi.org/10.4208/cicp.250515.161115a},
url = {http://global-sci.org/intro/article_detail/cicp/11143.html}
}