The Influence of Roughness Change on Ship Resistance in CFD Simulations
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2022
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The biofouling of ship hulls has a significant impact on both the environment and the ship. A negative effect on the environment is manifested by an increase in pollution with greenhouse gasses and disrupting the ecosystem by translocating microorganisms, sea plants or animals from one place to another. Biofouling film which appears on the immersed hull part through the years increases surface roughness and therefore induces a streamlines disturbance and together with increased wet surface affects the increase in total resistance. As a result of greater total resistance, a larger amount of fuel combusts over time, thus greenhouse emission is being increased. A numerical model based on Reynolds Averaged Navier-Stokes (RANS) equations with incorporated different roughness effects as equivalent sand grain roughness height in one Computational Fluid Dynamics (CFD) software has been conducted in this paper. Simulation has been applied to one bulk carrier and represents the effect of dry-doc...king the ship after several years in operation and treating the hull with high-performance coat such as self-polishing coating (SPC) or silicone- and fluorine-based fouling coatings (FRC).
Ključne reči:
Biofouling / CFD / RANS / self-polishing coating (SPC) / fluorine-based fouling coatings (FRC)Izvor:
Proceedings of 24th Numerical Towing Tank Symposium October 2022 (NuTTS 2022), Zagreb, Croatia, 2022Izdavač:
- Inno Gatin
- Milovan Perić
Finansiranje / projekti:
- Razvoj nove generacije sigurnih, efikasnih, ekoloških (se-eko) brodova (RS-MESTD-Technological Development (TD or TR)-35009)
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Institucija/grupa
Mašinski fakultetTY - CONF AU - Vasilev, Matija AU - Kalajdžić, Milan PY - 2022 UR - https://machinery.mas.bg.ac.rs/handle/123456789/6733 AB - The biofouling of ship hulls has a significant impact on both the environment and the ship. A negative effect on the environment is manifested by an increase in pollution with greenhouse gasses and disrupting the ecosystem by translocating microorganisms, sea plants or animals from one place to another. Biofouling film which appears on the immersed hull part through the years increases surface roughness and therefore induces a streamlines disturbance and together with increased wet surface affects the increase in total resistance. As a result of greater total resistance, a larger amount of fuel combusts over time, thus greenhouse emission is being increased. A numerical model based on Reynolds Averaged Navier-Stokes (RANS) equations with incorporated different roughness effects as equivalent sand grain roughness height in one Computational Fluid Dynamics (CFD) software has been conducted in this paper. Simulation has been applied to one bulk carrier and represents the effect of dry-docking the ship after several years in operation and treating the hull with high-performance coat such as self-polishing coating (SPC) or silicone- and fluorine-based fouling coatings (FRC). PB - Inno Gatin PB - Milovan Perić C3 - Proceedings of 24th Numerical Towing Tank Symposium October 2022 (NuTTS 2022), Zagreb, Croatia T1 - The Influence of Roughness Change on Ship Resistance in CFD Simulations UR - https://hdl.handle.net/21.15107/rcub_machinery_6733 ER -
@conference{ author = "Vasilev, Matija and Kalajdžić, Milan", year = "2022", abstract = "The biofouling of ship hulls has a significant impact on both the environment and the ship. A negative effect on the environment is manifested by an increase in pollution with greenhouse gasses and disrupting the ecosystem by translocating microorganisms, sea plants or animals from one place to another. Biofouling film which appears on the immersed hull part through the years increases surface roughness and therefore induces a streamlines disturbance and together with increased wet surface affects the increase in total resistance. As a result of greater total resistance, a larger amount of fuel combusts over time, thus greenhouse emission is being increased. A numerical model based on Reynolds Averaged Navier-Stokes (RANS) equations with incorporated different roughness effects as equivalent sand grain roughness height in one Computational Fluid Dynamics (CFD) software has been conducted in this paper. Simulation has been applied to one bulk carrier and represents the effect of dry-docking the ship after several years in operation and treating the hull with high-performance coat such as self-polishing coating (SPC) or silicone- and fluorine-based fouling coatings (FRC).", publisher = "Inno Gatin, Milovan Perić", journal = "Proceedings of 24th Numerical Towing Tank Symposium October 2022 (NuTTS 2022), Zagreb, Croatia", title = "The Influence of Roughness Change on Ship Resistance in CFD Simulations", url = "https://hdl.handle.net/21.15107/rcub_machinery_6733" }
Vasilev, M.,& Kalajdžić, M.. (2022). The Influence of Roughness Change on Ship Resistance in CFD Simulations. in Proceedings of 24th Numerical Towing Tank Symposium October 2022 (NuTTS 2022), Zagreb, Croatia Inno Gatin.. https://hdl.handle.net/21.15107/rcub_machinery_6733
Vasilev M, Kalajdžić M. The Influence of Roughness Change on Ship Resistance in CFD Simulations. in Proceedings of 24th Numerical Towing Tank Symposium October 2022 (NuTTS 2022), Zagreb, Croatia. 2022;. https://hdl.handle.net/21.15107/rcub_machinery_6733 .
Vasilev, Matija, Kalajdžić, Milan, "The Influence of Roughness Change on Ship Resistance in CFD Simulations" in Proceedings of 24th Numerical Towing Tank Symposium October 2022 (NuTTS 2022), Zagreb, Croatia (2022), https://hdl.handle.net/21.15107/rcub_machinery_6733 .