Parallel solution of Maxwell's Equations on a cluster of WS in PVM environment

The Computational Electromagnetics plays an essential role in designing shapes having low radar signatures. A crude way of radar signature estimation for a complex shape can be based on a combined theory of a geometrical and physical optics together with the superposition of solutions for simple shapes. This approach, however, utilizes only the first order approximations and its accuracy is not sufficient for most of the applications. The most recent studies suggest that even with current supercomputers, the method of moments is not feasible for analysis and design of objects having large electromagnetic radii. The solution of Maxwell's Equations in PVM environment is obtained to study the electromagnetic scattering about arbitrary shapes. The Lax-Wendrofif Scheme is employed to solve equations in time domain. This chapter provides formulation of the problem followed by covering parallel implementation of the code in the PVM environment. The chapter derives numerical results obtained for an airfoil and presents a generic helicopter. A code already developed for a single processor for solution of the Maxwell's Equations is adapted and implemented for electromagnetic scattering calculations in a PVM environment. The code is based on the Lax- Wendroff scheme without adding anything artificial.