Verification Of Fdtd Code Using The Method Of Exact Solutions

Verification & Validation (V&V) attract more and more interests now and are extensively used in computational electromagnetics. In this paper, the method of exact solutions (MES) which is important in code verification is introduced by explaining the flow chartand the important glossaries and concepts of this method are explicated too. The process of global error evaluating by the approach of L-2 norm of the numerical simulation is commentated. Finite-difference time-domain (FDTD) arithmetic is chosen for the application of code verification by MES and the convergence rate and order-of-accuracy of FDTD are analyzed. The exact solution is selected and code verification using MES is given by comparing the observed order-of-accuracy of the numerical simulation result with the theoretical analysis result. This verification method would be useful in FDTD software development.