TY - JOUR
T1 - A Low Frequency Model for Acoustic Propagation in a 2D Flow Duct: Numerical Computation
AU - Lauris Joubert & Patrick Joly
JO - Communications in Computational Physics
VL - 2
SP - 508
EP - 524
PY - 2012
DA - 2012/12
SN - 11
DO - http://doi.org/10.4208/cicp.181209.040111s
UR - https://global-sci.org/intro/article_detail/cicp/7375.html
KW - 
AB - <p style="text-align: justify;">In this paper we study a low frequency model for acoustic propagation in a
2D flow duct. For some Mach profile flow, we are able to give a well-posedness theorem. Its proof relies on a quasi-explicit expression of the solution which provides us
an efficient numerical method. We give and comment numerical results for particular
linear, tangent and quadratic profiles. Finally, we give a numerical validation of our
asymptotic model.</p>