Geometric Effect of Bulbous Bows to the Hydrodynamic and the Probability of Slamming on Catamaran
DOI:
https://doi.org/10.37934/cfdl.15.9.166174Keywords:
Shape geometric, Bulbous bow, Catamaran, Hydrodynamic, Slamming effectAbstract
Achieving optimal efficiency, good performance, and cost-effectiveness is the main challenge in ship design. Using a bulbous bow is part of attaining an excellent design to reduce drag and dynamic load caused by waves and slamming. The design of the bulbous bow is commonly determined by shape geometric based on laboratory testing or computer optimization. This article compares the probability of slamming into a catamaran NPL hull without a bulbous bow and with a bulbous bow. Variation of the geometric bulbous bow and its effect on hydrodynamics and slamming was investigated. This study uses a numerical method by CFD software and applies secondary data of model testing on the same object as another researcher. The adjustment of the bulbous bow led to a 15.22–17.07% reduction in wave drag. According to the bulbous bow variant, increasing the linear parameter of the length of the bulbous bow reduces the wave drag and the probability of slamming to 2,9% In the motion analysis of a catamaran without a bulbous bow, the heaving and pitching are more significant than a catamaran with a bulbous bow.
Downloads
References
Vernengo, Giuliano, and Dario Bruzzone. "Resistance and seakeeping numerical performance analyses of a semi-small waterplane area twin hull at medium to high speeds." Journal of Marine Science and Application 15 (2016): 1-7. https://doi.org/10.1007/s11804-016-1343-0
Yun, Liang, Alan Bliault, and Huan Zong Rong. High speed catamarans and multihulls: technology, performance, and applications. Springer, 2018. https://doi.org/10.1007/978-1-4939-7891-5
Yongxing, Zhang, and Dong-Joon Kim. "Optimization approach for a catamaran hull using CAESES and STAR-CCM+." Journal of Ocean Engineering and Technology 34, no. 4 (2020): 272-276. https://doi.org/10.26748/KSOE.2019.058
Suastika, Ketut, Agung Silaen, Muhammad Hafiz Nurwahyu Aliffrananda, and Yuda Apri Hermawan. "Seakeeping Analysis of a Hydrofoil Supported Watercraft (Hysuwac): A Case Study." CFD Letters 13, no. 5 (2021): 10-27. https://doi.org/10.37934/cfdl.13.5.1027
Lubis, Hamzah. "Renewable energy of rice husk for reducing fossil energy in Indonesia." Journal of Advanced Research in Applied Sciences and Engineering Technology 11, no. 1 (2018): 17-22.
Amran, Mohd Effendi, and Mohd Nabil Muhtazaruddin. "Renewable Energy Optimization Review: Variables towards Competitive Advantage in Green Building Development." Progress in Energy and Environment 8 (2019): 1-15.
Kurniawan, Aries Taufiq, Arief Budiman, Rachmawan Budiarto, and Ridwan Budi Prasetyo. "Wave Energy Potential Using OWC (Oscillating Water Column) System at Pantai Baron, Gunung Kidul, DI Yogyakarta, Indonesia." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 92, no. 2 (2022): 191-201. https://doi.org/10.37934/arfmts.92.2.191201
Sidik, Nor Azwadi Che, Solihin Musa, Siti Nurul Akmal Yusof, and Erdiwansyah Erdiwansyah. "Analysis of Internal Flow in Bag Filter by Different Inlet Angle." Journal of Advanced Research in Numerical Heat Transfer 3, no. 1 (2020): 12-24.
Chrismianto, Deddy, and Berlian Arswendo Adietya. "Analysis of Effect of Bulbous Bow Shape to Ship Resistance in Catamaran Boat." In Matec Web of Conferences, vol. 159, p. 02058. EDP Sciences, 2018. https://doi.org/10.1051/matecconf/201815902058
Atlar, Mehmet, Kwangcheol Seo, Roderick Sampson, and Devrim Bulent Danisman. "Anti-slamming bulbous bow and tunnel stern applications on a novel Deep-V catamaran for improved performance." International Journal of Naval Architecture and Ocean Engineering 5, no. 2 (2013): 302-312. https://doi.org/10.3744/JNAOE.2013.5.2.302
Abdul Ghani, M. P., and P. A. Wilson. "Experimental analysis of catamaran forms with bulbous bows operating in shallow water." International shipbuilding progress 56, no. 1/2 (2009): 29-57.
Danisman, D. Bülent, Ömer Gören, Mustafa Insel, and Mehmet Atlar. "An optimization study for the bow form of high-speed displacement catamarans." Marine technology and SNAME news 38, no. 02 (2001): 116-121. https://doi.org/10.5957/mt1.2001.38.2.116
Nielsen, Ivan R. "Assessment of ship performance in a seaway." Publisher: NORDFORSK, Sortedam Dossering 19, DK-200 Copenhage, Denmark, ISBN: 87-982637-1-4 (1987).
Bentley. "Maxsurf Modeler User Manual." Bentley System, Inc., (2015). https://doi.org/10.1136/bmj.i5173
Ansys, C. F. X. "10.0 User’s Manual, ANSYS." Inc., Canonsburg, PA (2013).
Ansys, A. Q. W. A. "AQWA theory manual." AQWA: Canonsburg, PA, USA (2013).
Procedures, ITTC-Recommended. "Practical guidelines for ship CFD applications." Guidelines 2011 (2011): 1-18.
Bertram, Volker. "Vibrations." (2012). https://doi.org/10.1016/B978-0-08-097150-6.10005-3
Bhattacharyya, Rameswar. Dynamics of marine vehicles. John Wiley & Sons Incorporated, 1978.
Procedures, ITTC ITTC—Recommended. "Guidelines. Seakeeping Experiments." 27th ITTC Seakeeping Committee;(7.5-02 07-02.1) (2014): 1-22.
