This study has direct application to the design of submerged dipole antennas. The hypothetical laboratory modeling system consists of a closed circuit water tunnel capable of simulating the electrodynamic and hydrodynamic properties of water at speeds up to 20 knots. Electrical noise quieting is achieved by shielding and correlation techniques. Only the test section of the water tunnel is shielded. Additional quieting is obtained by using coaxial electrodes. The simulator features parametric control of fluid properties, corrosion rates, turbulence, fluid velocity, model shape and materials.