Deeb, N., Baidowi, A. and Kurniawan, A. 2025. Flettner Rotor Modification through Adding Ridges and Fins with Results Comparison to Base Model. International Journal of Marine Engineering Innovation and Research. 8, 2 (Jul. 2025), 150–160. DOI:https://doi.org/10.12962/j25481479.v8i2.5199.