RCS Calculation of a Large Transport Ship - CST2013 MWS Examples

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General Description

In this example the RCS calculation of a large transport ship is presented. A plane wave is given as an excitation from the top at 45°. The dimensions of the ship are 130 x 20 x 20 meters. The scattering properties and the surface current of the structure are of interest at 150 MHz. The total simulation takes less than an hour simulation time and about 1.4 GB memory.

Structure Generation

The structure is constructed by defining primitive shapes as well as using the curve polygon feature. The ship is solely made of PEC.

Solver Setup

Due to the requested RCS calculation the excitation is determined as a plane wave and a farfield monitor as well as an E- and H-field monitor is defined at 150 MHz. The special solver parameters and the surface mesh properties are chosen in order to perform electrically large model simulations.

Post Processing

The farfield information is stored in the folder Farfield in the navigation tree, where the corresponding plot mode has to be chosen to get the visualization of the RCS properties.

The monitored 3D fields can be examined in the folder 2D/3D Results. As an example, the 3d farfield as well as the polar plot of the farfield are shown below.