TY - JOUR
T1 - Non-uniform grid accelerated local-global boundary condition (NG-LGBC) for acoustic scattering
AU - Boag, Amir
AU - Shemer, Uri
AU - Kastner, Raphael
N1 - Funding Information:
A. Boag acknowledges partial support by the Israel Science Foundation under Grant No. 224/03. R. Kastner acknowledges partial support by the US–Israel Bi-National Science Foundation under Grant No. 1999420.
PY - 2006/6/1
Y1 - 2006/6/1
N2 - A global absorbing boundary condition utilizing accelerated integration scheme based on the non-uniform grid (NG) approach is hybridized with a local boundary condition, producing an accurate and efficient mesh truncation scheme for finite method analysis of open-region acoustic scattering problems. The method affords arbitrarily shaped, in particular non-convex boundaries that conform to essentially concave obstacles of dimensions large compared with the wavelength.
AB - A global absorbing boundary condition utilizing accelerated integration scheme based on the non-uniform grid (NG) approach is hybridized with a local boundary condition, producing an accurate and efficient mesh truncation scheme for finite method analysis of open-region acoustic scattering problems. The method affords arbitrarily shaped, in particular non-convex boundaries that conform to essentially concave obstacles of dimensions large compared with the wavelength.
KW - Absorbing boundary condition
KW - Acoustic scattering
KW - Fast methods
KW - Global boundary condition
KW - Kirchoff integral
UR - http://www.scopus.com/inward/record.url?scp=33645933923&partnerID=8YFLogxK
U2 - 10.1016/j.cma.2005.02.028
DO - 10.1016/j.cma.2005.02.028
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AN - SCOPUS:33645933923
VL - 195
SP - 3608
EP - 3621
JO - Computer Methods in Applied Mechanics and Engineering
JF - Computer Methods in Applied Mechanics and Engineering
SN - 0374-2830
IS - 29-32
ER -