en Numerical Investigation مقاله پژوهشي Research Paper Oil spills represent a critical source of marine pollution with profound environmental, economic, and social ramifications. This numerical study investigates the interaction between sea waves and oil slicks using ANSYS AQWA software to elucidate the dynamics of oil pollution distribution under wave action. The research examines three pollution mass models with varying dimensions under different wave approach angles (0&deg;, 30&deg;, and 60&deg;) utilizing second-order Stokes wave theory. The investigation reveals that displacement of the pollution mass center decreases with increasing wave angle. Maximum displacement and mobility increase proportionally with expanding oil slick dimensions at constant mass. Wave-induced forces on pollution masses exhibit inverse correlation with wave angle. Forces from irregular waves exceed those from regular Stokes waves by approximately 20% for larger pollution masses. For expanded oil slicks, irregular wave forces can reach up to three times the magnitude of regular wave forces. These findings provide crucial insights for oil spill response planning, containment system design, and environmental impact assessment in marine environments.<br> &nbsp;<br> &nbsp; ,oil spill modeling,wave-pollution interaction,numerical simulation,ANSYS AQWA,marine pollution dynamics,hydrodynamic analysis 73 82 http://ijmt.ir/browse.php?a_code=A-10-8442-1&slc_lang=en&sid=1 roshanak khosrojerdi khosrojerdi.rosha@ut.ac.ir 10031947532846004525 10031947532846004525 Yes PhD Student, Water and Hydraulic Structures, Faculty of Civil Engineering-University of Tehran farhoud kalateh fkalateh@tabrizu.ac.ir 10031947532846004526 10031947532846004526 No Professor at University of Tabriz ,Ph.D, P.E., M.ASCEVisiting Associate Professor at University of Warwick, Associate