Title :
The CPML Absorbing Boundary Conditions for the Unconditionally Stable Meshless Modeling
Author :
Yu, Yiqiang ; Chen, Zhizhang
Author_Institution :
Dept. of Commun. Eng., East China Jiaotong Univ., Nanchang, China
fDate :
7/4/1905 12:00:00 AM
Abstract :
The convolutional perfectly matched layer (CPML) is developed for alternating-direction-implicit (ADI) radial point interpolation meshless method (RPIM). The presented node-based CPML provides efficient absorption of outgoing electromagnetic waves from a truncated computational region of the ADI-RPIM method, and thus extends the unconditionally stable meshless modeling to open-region scattering and radiation problems. The unconditional stability and effectiveness of the node-based CPML are verified through numerical experiments.
Keywords :
electromagnetic wave absorption; electromagnetic wave scattering; interpolation; ADI-RPIM method; CPML absorbing boundary conditions; alternating-direction-implicit method; convolutional perfectly matched layer; electromagnetic wave absorption; node-based CPML; open-region scattering; radial point interpolation meshless method; radiation problems; truncated computational region; unconditional stability; unconditionally stable meshless modeling; Cutoff frequency; Equations; Finite difference methods; Interpolation; Mathematical model; Reflection; Time domain analysis; Alternating-direction-implicit (ADI) scheme; finite -difference time domain (FDTD); meshless methods; perfectly matched layer (PML); radial point interpolation method (RPIM);
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2012.2193110
