A novel body-of-revolution finite-difference time-domain method with weakly conditional stability

作者：Chen Juan^*; Wang Jianguo

来源：IEEE Microwave and Wireless Components Letters, 2008, 18(6): 377-379.

DOI：10.1109/LMWC.2008.922574

• body of revolution finite-difference time-domain (BOR-FDTD) method
• rotationally symmetric structures
• weakly conditionally stable finite-difference time-domain (WCS-FDTD) method

In this letter, the weakly conditionally stable finite-difference time-domain method (WCS-FDTD) is introduced into the body of revolution finite-difference time-domain (BOR-FDTD) method, resulting in a weakly conditionally stable BOR-FDTD. It inherits the advantages of both WCS-FDTD and BOR-FDTD methods, i.e., not only weakening the restraint of the Courant-Friedrich-Lecy (CFL) condition, with an efficient saving of CPU running time, but also leading to a significant memory reduction in the storage of the field components in comparison with the 3-D FDTD method. The stability condition of proposed BOR-FDTD method is presented analytically and the numerical performance of the proposed method over the alternating-direction implicit BOR-FDTD method is demonstrated through numerical examples.

• 出版日期2008-6
• 单位西北核技术研究所; 西安交通大学