Fast Multipole Boundary Element Method for 3-Dimension Acoustic Radiation Problem
In order to reduce computational complexity and memory requirements using conventional boundary element method (CBEM) for large scale acoustical analysis, a fast solving algorithm called the Fast Multipole BEM (FMBEM) based on the fast multipole algorithm and GMRES iterative solver is developed without composing the dense influence coefficient matrices. The multipole level structure is introduced to accelerate the solution of large-scale acoustical problems, by employing a concept of cells clustering boundary elements and hierarchical cell structure. To further improve the efficiency of the FMBEM with iterative solvers, a block diagonal matrix method is used in the system of equations as the left preconditioner. Numerical examples are presented to further demonstrate the efficiency, accuracy and potentials of the fast multipole BEM for solving large-scale acoustical problems.
Fast Multipole Method Multipole Level Tree Structure Preconditioning Matrix Acoustic Radiation
Bingrong Zhang Jian Chen Litao Chen Wu Zhang
lnstitute of Sound and Vibration Research,Hefei University of Technology, 193, Tunxi St, Hefei, Anhui Province, China
国际会议
合肥
英文
80-85
2011-09-23（万方平台首次上网日期，不代表论文的发表时间）