1996
DOI: 10.1006/jsvi.1996.0187
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A Non-Singular Boundary Integral Equation for Acoustic Problems

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Cited by 8 publications
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“…In the close near"eld, where the distance z from the source surface is shorter than about 20% of the characteristic length, the "eld pressure predicted by CBEM has large errors (see "gures in reference [1]). Although the reason for near"eld inaccuracy has been simply ascribed to the short distance between "eld points and the source surface, further detailed explanation in needed for this phenomenon.…”
Section: Introductionmentioning
confidence: 98%
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“…In the close near"eld, where the distance z from the source surface is shorter than about 20% of the characteristic length, the "eld pressure predicted by CBEM has large errors (see "gures in reference [1]). Although the reason for near"eld inaccuracy has been simply ascribed to the short distance between "eld points and the source surface, further detailed explanation in needed for this phenomenon.…”
Section: Introductionmentioning
confidence: 98%
“…When a "eld point is placed in the very close near"eld to the source surface, R becomes very small and thus an instability problem will arise in the numerical integration. This problem can be solved by adopting the non-singular boundary element method (NBEM) [1]. In this method, all singularities involved in the conventional BIE can be eliminated by subtracting two propagating plane wave components from the integral identity.…”
Section: Introductionmentioning
confidence: 99%
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