Burton–Miller-type singular boundary method for acoustic radiation …
When the collocation point x m approaches the boundary, we can discretize Eq. (A2) as follows: (A3) ∑ j = 1 N ∂ G 0 I (x m, s j) ∂ n s L j = − 1, x m ∈ Γ where L j is half length of the curve s ⌢ j − 1 s j + 1 between source points s j−1 and s j+1 for 2D problems as shown in Fig. 1 a, and L j is the infinitesimal area of the ...
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