Abstarct: Competition for the use of lands in coastal areas, along with increasing concerns about environmental changes on coasts, has focused the most attention on coastal structures. In coastal engineering and ports, designing and constructing coastal structures that have desirable responses to wave energy absorption and resistance to sea wave conditions are the main concerns. Although there is a wide variety of designs for coastal structures, rubble mound breakwaters with sloping armor laxyers, which are made up of separate stone or concrete units and sometimes have a granular or pebble-like appearance, are the most common type of coastal structure. In this study, first, the methods for calculating and estimating the interaction between waves and wave breakwater armor in past research have been reviewed. These methods include the use of open-source codes or related software, among which numerical modeling in Ansys software has been used to investigate displacements and upcoming events in wave-armor unit collisions. This software includes results such as total deformations, equivalent surface stresses and strains, and the velocity and acceleration of armor by using computational fluid dynamics and the method of coupling forces entering from the fluid environment to the solid environment and structure. baxsed on the results obtained from the maximum total deformations of 0.18 nm, the maximum equivalent stress of 2307 Pa for the most critical armor, and identifying effective factors in fluid-structure interaction and collision, a scenario was examined to estimate the displacement and destruction so that these results could be used in designing accurate conclusions and operating conditions for armor.