CORROSSION/ANTICORROSION ANALYSIS METHOD

摘要

The present invention provides a method of analyzing corrosion and corrosion prevention in a system where two or more same or different regions of regions that are modeled as two-dimensional, three-dimensional, and axially symmetric regions are present continuously. The entire system is divided into regions, and each of the regions is divided into elements depending on respective models thereof, with one of the regions used as an attentional region and another as a non-attentional region. A division plane is shared by the two regions, and current densities and potentials on the elements which are positionally the same as each other on the division plane are equivalent to each other. A discrete boundary integral equation corresponding to the non-attentional region is modified to express the unknown relationship between current densities and potentials on the division plane with the known relationship between current densities and potentials on elements in the non-attentional region other than the division plane. A boundary element analysis is performed on the attentional region using the determined relationship between the current densities and potentials on the division plane as a boundary condition thereby to determine potential and current density distributions in the attentional region in its entirety. Then, a boundary element analysis is performed on the non-attentional region again using the determined potentials or current densities on the division plane thereby to analyze the regions in a related manner. <IMAGE>