The fast multipole boundary element method (FMBEM) is an advanced BE analysis technique that leads to drastic acceleration in processing time with major memory saving. Following the previous paper that specified a setup of FMBEM, practical criteria for the numerical items required for the setup are derived from detailed numerical examinations in order to ensure the accuracy and the efficiency of the method. Furthermore, regarding the hierarchical cell structure introduced in the FMBEM, the effects of the number of cell levels on processing time and memory requirements are investigated. The results give two rough criteria to determine the number of cell levels, which minimize processing time and memory requirements, respectively.
Document Type: Research Article
Publication date: January 1, 2003
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Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.