Numerical accuracy of a Padé-type non-reflecting boundary condition for the finite element solution of acoustic scattering problems at high-frequency

2005 ◽  
Vol 64 (10) ◽  
pp. 1275-1302 ◽  
Author(s):  
R. Kechroud ◽  
X. Antoine ◽  
A. Soulaïmani
Keyword(s):  
Boundary Condition ◽  
Finite Element ◽  
High Frequency ◽  
Acoustic Scattering ◽  
Finite Element Solution ◽  
Element Solution ◽  
Numerical Accuracy ◽  
Scattering Problems ◽  
Acoustic Scattering Problems

FINITE ELEMENT SOLUTION OF TWO-DIMENSIONAL ACOUSTIC SCATTERING PROBLEMS USING ARBITRARILY SHAPED CONVEX ARTIFICIAL BOUNDARIES

2000 ◽  
Vol 08 (01) ◽  
pp. 81-99 ◽  
Author(s):  
RABIA DJELLOULI ◽  
CHARBEL FARHAT ◽  
ANTONINI MACEDO ◽  
RADEK TEZAUR
Keyword(s):  
Finite Element ◽  
Finite Element Methods ◽  
Computational Efficiency ◽  
Acoustic Scattering ◽  
Two Dimensional ◽  
Element Solution ◽  
Scattering Problems ◽  
Nonreflecting Boundary Conditions ◽  
Artificial Boundaries ◽  
Acoustic Scattering Problems

For elongated scatterers such as submarines, we show that the generalization of the Bayliss–Turkel nonreflecting boundary conditions to arbitrarily shaped convex artificial boundaries improves significantly the computational efficiency of finite element methods for the solution of acoustic scattering problems.

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