Fast and accurate determination of 3D temperature distribution using fraction-step semi-implicit method

作者：Cen, Wei; Hoppe, Ralph; Gu, Ning^*

来源：AIP Advances, 2016, 6(9): 095305.

DOI：10.1063/1.4962665

In this paper, we proposed a method to numerically determinate 3-dimensional thermal response due to electromagnetic exposure quickly and accurately. Due to the stability criterion the explicit finite-difference time-domain (FDTD) method works fast only if the spatial step is not set very small. In this paper, the semi-implicit Crank-Nicholson method for time domain discretization with unconditional time stability is proposed, where the idea of fractional steps method was utilized in 3-dimension so that an efficient numerical implementation is obtained. Compared with the explicit FDTD, with similar numerical precision, the proposed method takes less than 1/200 of the execution time.

• 出版日期2016-9
• 单位南京中医药大学