scholarly journals Finite elements and absorbing boundary conditions for scattering problems on a parallel distributed memory computer

1997 ◽  
Vol 33 (2) ◽  
pp. 1448-1451 ◽  
Author(s):  
C. Vollaire ◽  
L. Nicolas ◽  
A. Nicolas
Keyword(s):  
Finite Elements ◽  
Boundary Conditions ◽  
Distributed Memory ◽  
Absorbing Boundary Conditions ◽  
Scattering Problems ◽  
Absorbing Boundary

The Effect of Wave Number on the Performance of BGT Absorbing Boundary Conditions for Acoustic Scattering

2000 ◽  
Author(s):  
Isaac Harari ◽  
Rabia Djellouli
Keyword(s):  
Boundary Conditions ◽  
Computational Cost ◽  
Acoustic Scattering ◽  
Absorbing Boundary Conditions ◽  
Surface Radiation ◽  
Wave Number ◽  
Scattering Problems ◽  
Absorbing Boundary ◽  
Practical Applications ◽  
Radiation Conditions

Abstract The computation of exterior wave problems at low wave numbers can become prohibitively expensive when higher circumferential modes are significant. An analysis of the effect of wave number on scattering problems, with local absorbing boundary conditions specified on simple shapes as on-surface radiation conditions, provides guidelines for satisfactory performance. Excessive computational cost may be avoided for most practical applications.

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