Measuring and modeling of wetted surfaces

Le résumé fourni par la source

This paper will present a comprehensive study on the measurement, modeling, and simulation of the optical properties of wet surface paints. Low observable paints are designed to camouflage the optical signature of a system by imitating the background thermal signature and scattering incident light (visible and IR). These properties are well studied for pristine conditions but their optical properties in real conditions, wet and at cold temperatures, are less known. Herein, we present an in-situ measurement of dry, wet, and icy paint samples commonly used for thermal signature management. The collected data is analyzed for input to ShipIR based on a derived nominal (diffuse) emissivity and specular reflectivity versus incidence angle using the Sanford-Robertson approximation, where the angular and spectral properties of surface reflectance are separable. ). A current and modified version of the ShipIR wetted surface reflectance model will be compared against the optical properties obtained by the SOC reflectometers.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.