20.500.12556/RUL-167974 Computational fluid dynamics analysis of superhydrophobic and superhydrophilic micro-textures for biofouling mitigation Micro-texturing has been studied for many decades as a passive antifouling technology. However, most studies have been experimental in nature and lack an informed basis for the selection of the micro-texture architecture. The herein reported preliminary numerical studies explored micro-textured superhydrophobic and superhydrophilic surfaces for mitigating biofouling and related effects, such as Microbial Induced Corrosion (MIC). Surface wettability manipulation is a key mitigation strategy for these issues. A computational model was developed to simulate the spreading behaviour of water droplets (an indicator of wettability) on three micro-textures (cubic, cylindrical, and hemispherical), with varying inter-pillar distances (10, 20, and 30 μm) for both superhydrophobic and superhydrophilic surfaces, with contact angles of 150° and 20°, respectively. Results showed lower Maximum Spreading Diameters (MSD) on the superhydrophobic models, compared to a flat surface. Cubic micro-textures with larger inter-pillar distances reduced MSD by 54.42%, suggesting enhanced water repellence and potentially preventing biofouling and closed-related effects such as MIC. Conversely, all superhydrophilic models had higher MSDs and formed an electrochemically-bound epitaxial aqueous surface layer which could act as a physical and interfacial energy barrier to bio-attachment. Hemispherical morphologies increased the MSD by 68.92%. The findings highlight the criticality of informed computational studies in biomimetic antifouling research whilst also demonstrating the potential benefits of micro-texturing as part of passive antifouling surface technology. biofouling microbial induced corrosion (mic) computational fluid dynamics (cfd) superhydrophobic spreading diameter biološko obraščanje mikrobno inducirana korozija (mic) računalniška dinamika fluidov (cfd) superhidrofobnost premer razlitja true false true Angleški jezik Slovenski jezik Članek v reviji 2025-03-21 11:06:53 2025-03-21 11:07:00 2025-03-22 04:08:20 0000-00-00 00:00:00 2025 0 0 21 str. art. 104627 Vol. 26 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 532.5:621 2590-1230 10.1016/j.rineng.2025.104627 229496835 RAZ_Nazari_Samira_2025.pdf RAZ_Nazari_Samira_2025.pdf 1 67958DE9958E9B41BAA436C19C85DD01 8a3e5065710a06352d00030a48fe52ad6c2c3e41aa15416c50a8c82be274c8bb 7e45d296-063b-11f0-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=200938 https://www.sciencedirect.com/science/article/pii/S2590123025007042?via%3Dihub 1 3821b411-063b-11f0-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=200937 Fakulteta za strojništvo 0 0 0