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Analisis Pengaruh Pengunaan Ulstein X-Bow pada Kapal Perintis Type 750 DWT Terhadap Nilai Hambatan dengan Metode Computational Fluid Dynamics
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ABSTRAK
Hambatan merupakan aspek penting yang perlu diperhatikan dalam mendesain sebuah kapal. Salah satu upaya untuk mengurangi hambatan adalah memodifikasi bentuk haluan kapal dengan menggunakan Ulstein X-Bow. Penelitian ini bertujuan untuk mengetahui efektifitas penggunaan Ulstein X-Bow serta mencari nilai hambatan, trim dan sinkage terkecil dengan menggunakan metode CFD (Computational Fluid Dynamics) dengan teknik overset mesh. Penerapan variasi Froude Number, Stem Angle, Flare Bow, serta kondisi perairan (deep water dan medium shallow water) dilakukan untuk mendapatkan bentuk desain yang paling optimal. Hasil penelitian ini menunjukan bahwa Kapal Perintis 750 DWT dengan penggunaan Ulstein X-Bow pada kondisi perairan dalam (deep water) h/t = 19.3, dapat mengurangai nilai hambatan sebesar 4.85%, trim sebesar 2.32% dan sinkage sebesar 0.40% yang terdapat pada Model 4 dibandingkan dengan Model 1 pada Froude Number (Fn = 0.24), sedangkan pada kondisi perairan medium (medium shallow water) h/t = 4.0, nilai hambatan, trim dan sinkage terkecil terjadi pada Kapal Perintis 750 DWT tanpa penggunaan Ulstein X-Bow pada Froude Number (Fn = 0.24).
Kata kunci: Hambatan, Ulstein X-Bow, Kapal Perintis 750 DWT, Computational Fluid Dynamics
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ABSTRACT
Resistance is an important aspect that needs to be considered when designing a ship. One of the ways to reduce the resistance value is to modify the shape of the ship's bow using the Ulstein X-Bow. The main objective of this research is to find out the Effectiveness of using Ulstein X-Bow and to find the smallest resistance, trim and sinkage values using the CFD (Computational Fluid Dynamics) method with mesh overset techniques. The application of variations in Froude Number, Stem Angle, Flare Bow, and water conditions (deep water and medium shallow water) is done to get the most optimal design shape.The results of this study showed that in deep water conditions (h/t = 19.3), Perintis 750 DWT using Ulstein X-Bow can reduce the resistance value by 4.85%, trim by 2.32% and sinkage by 0.40% that can be found in model 4 compared to model 1 on Froude Number (Fn = 0.24). while in medium shallow water conditions h/t = 4.0, the smallest resistance, trim and sinkage values occur on the Perintis 750 DWT ship without using Ulstein X-Bow at Froude Number (Fn = 0.24).
Keywords: Resistance, Ulstein X-Bow, Perintis 750 DWT Ship, Computational Fluid Dynamic
Kata Kunci
Teks Lengkap:
PDFReferensi
Hadi, E. S., Manik, P., & Iqbal, M. (2018). Influence of hull entrance angle “Perintis 750 DWTâ€, toward ship resistance: the case study for design development “Perintis 750 DWT.â€. In MATEC Web of Conferences (Vol. 159, p. 01057). EDP Sciences.
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DOI: https://doi.org/10.26760/jrh.v5i3.248-266
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