TY - EJOU AU - Chandrasekhar, B. TI - Error Analysis of Various Basis Functions Used in BEM Solution of Acoustic Scattering T2 - Computer Modeling in Engineering \& Sciences PY - 2010 VL - 56 IS - 3 SN - 1526-1506 AB - In this work, various basis functions used in the Method of Moments or Boundary Element (MoM/BEM) solution of acoustic scattering problems are compared with each other for their performance. Single layer formulation of the rigid bodies is considered in comparison of the solutions. Geometry of a scatterer is descritized using triangular patch modeling and basis functions are defined on triangular patches, edges and nodes for three different solutions. Far field scattering cross sections for different frequencies of incident acoustic wave are compared with the closed form solutions. Also, the errors of the solutions using these three types of basis functions are computed and plotted. Finally important conclusions are drawn and future work defined. KW - Acoustic scattering KW - Boundary Element Method KW - Method of moments KW - Error analysis KW - Patch based basis functions KW - Edge based basis functions KW - Node based basis functions KW - Boundary integral equations DO - 10.3970/cmes.2010.056.211