Results 71 to 80 of about 1,795 (184)

A topology optimisation for three-dimensional acoustics with the level set method and the fast multipole boundary element method

Mechanical Engineering Journal, 2014
We have been investigating applications of a topology optimisation method with the level set method. In this study, to further enhance the applicability of the method, we investigate a topology optimisation method for three-dimensional scalar wave ...
Hiroshi ISAKARI, Kohei KURIYAMA, Shinya HARADA, Takayuki YAMADA, Toru TAKAHASHI, Toshiro MATSUMOTO   +5 more
doaj   +1 more source

Investigation on the Electromagnetic Transmission Performance of Radomes Under the Thermal Environment

International Journal of Aerospace Engineering
The radome of high-speed aircraft could suffer harsh thermal load during service, which affects the electromagnetic transmission performance of the radome.
Yanbin Li, Lixin Yang, Dongze He, Qingguo Fei   +3 more
doaj   +1 more source

Application of Hierarchical Two-Level Spectral Preconditioning Method for Electromagnetic Scattering from the Rough Surface

International Journal of Antennas and Propagation, 2014
The higher-order hierarchical Legendre basis functions combining the electrical field integral equations (EFIE) are developed to solve the scattering problems from the rough surface. The hierarchical two-level spectral preconditioning method is developed
D. Z. Ding, G. M. Li, Y. Y. An, R. S. Chen   +3 more
doaj   +1 more source

Fast Multipole Method with Complex Coordinates

CoRR
In this work we present a variant of the fast multipole method (FMM) for efficiently evaluating standard layer potentials on geometries with complex coordinates in two and three dimensions. The complex scaled boundary integral method for the efficient solution of scattering problems on unbounded domains results in complex point locations upon ...
Tristan Goodwill, Leslie Greengard, Jeremy G. Hoskins, Manas Rachh, Yuguan Wang   +4 more
openaire   +2 more sources

Thermal Properties of Short Fibre Composites Modeled by Meshless Method

Advances in Materials Science and Engineering, 2014
Computational model using continuous source functions along the fibre axis is presented for simulation of temperature/heat flux in composites reinforced by short fibres with large aspect ratio.
Vladimír Kompiš, Zuzana Murčinková
doaj   +1 more source

A Simple Formulation of the Fast Multipole Method: Pseudo-Particle Multipole Method

, 1998
13 pages, 6 figures, uses aaspp4.sty, to appear in the proceedings of the ninth SIAM conference on parallel processing for scientific computing, Texas, March ...
Atsushi Kawai, Junichiro Makino
openaire   +2 more sources

Enhanced Upward Translations for Systems with Clusters

Applied Sciences
The paper is concerned with using boundary element methods (BEM) for the accurate evaluation of fields in structures with clusters. For large-scale problems, the BEM system is solved iteratively by speeding up matrix-to-vector multiplications by applying
Ewa Rejwer-Kosińska, Aleksandr Linkov, Liliana Rybarska-Rusinek   +2 more
doaj   +1 more source

Boundary element fast multipole method for modeling electrical brain stimulation with voltage and current electrodes. [PDF]

J Neural Eng, 2021
Makarov SN, Golestanirad L, Wartman WA, Nguyen BT, Noetscher GM, Ahveninen JP, Fujimoto K, Weise K, Nummenmaa AR.   +8 more
europepmc   +1 more source

Boundary Element Fast Multipole Method for Enhanced Modeling of Neurophysiological Recordings. [PDF]

IEEE Trans Biomed Eng, 2021
Makarov SN, Hamalainen M, Okada Y, Noetscher GM, Ahveninen J, Nummenmaa A.   +5 more
europepmc   +1 more source

Estimation of Stress Intensity Factor by Using a New Fast Multipole Dual-Boundary Element Method

Mathematics
Cracks and defects are inevitable during the long-term use of structures. This study focuses on determining the stress intensity factors of multi-cracked structures by using a new fast multipole dual boundary element method.
Cong Li, Yan Meng, Bin Hu, Zhongrong Niu
doaj   +1 more source