• Samuel Samuel Universitas Diponegoro
  • Binart Reynaldo Pardosi Universitas Diponegoro



Lake Toba, Design, CFD, Ferry


Samosir is an island in North Sumatra which is used as a tourist destination because of the beauty of its lake. Crossing to the island of Samosir requires a ship as sea transportation. Based on data from the Ministry of Transportation, Ajibata Port, the process of crossing vehicles on holidays has been delayed due to a surge in passengers during the high season. The purpose of this research is to design/plan a ship to overcome the accumulation of the number of vehicles in the high season. The method used is the comparison ship method. The number of comparison ships is ten ships of the same type and has met the design criteria as a reference in determining the main size of the new ship. Determination of resistance on this catamaran ferry using the Computational Fluid Dynamics (CFD) method. The way CFD works is using the Navier-Stokes equation to describe the turbulence model with k-ε using multiphase water and air flows. The stability analysis was based on the conditions of the four different compartments following the IMO requirements. The motion analysis was based on the wave height on Lake Toba following the 1987 NORDFORSK rules. The results of the ro-ro ferry design resulted in the main dimensions of the LPP being 49.26 m long, 14.32 m wide, 2.4 m laden, and 4 m high. 9 m, Cb demihull 0.54 and a speed of 11 knots. The resistance value generated using CFD simulation is 68.8 KN. Based on the resistance value, two main engines of 253.3 HP are used.

Author Biography

Binart Reynaldo Pardosi, Universitas Diponegoro

Engineer Department


A. F. Z. FACHRY RAMADHAN, and BERLIAN ARSWENDO ADIETYA, “Studi Pra Perancangan Kapal Monohull Katamaran Trimaran Di Perairan Bali,” vol. 10, no. 1, pp. 39–47, 2013, doi: 10.14710/kpl.v10i1.4739.

SAMUEL, M. IQBAL, and I. K. A. P. UTAMA, “An investigation into the resistance components of converting a traditional monohull fishing vessel into catamaran form,” Int. J. Technol., vol. 6, no. 3, pp. 432–441, 2015, doi: 10.14716/ijtech.v6i3.940.

FATHUDDIIN, A., and SAMUEL, S, “Meshing Strategi untuk Memprediksi Hambatan Total pada Kapal Planing Hull,” J. Rekayasa Mesin, vol. 12, no. 2, pp. 381–390, 2021, doi: 10.21776/ub.jrm.2021.012.02.15.

BROGLIA, R., BOUSCASSE, B., JACOB, B., OLIVIERI, A., ZAGHI, S., and STERN, F., “Calm water and seakeeping investigation for a fast catamaran,” 11th Int. Conf. Fast Sea Transp. FAST 2011 - Proc., no. September, pp. 336–344, 2011.

SAMUEL, D. J. KIM, M. IQBAL, A. BAHATMAKA, and A. RIO PRABOWO, “Bulbous bow applications on a catamaran fishing vessel for improving performance,” MATEC Web Conf., vol. 159, pp. 1–6, 2018, doi: 10.1051/matecconf/201815902057.

S. ZAGHI, R. BROGLIA, and A. DI MASCIO, “Experimental and numerical investigations on fast catamarans interference effects,” J. Hydrodyn., vol. 22, 2010.

E. EDWAD V. LEWIS, “Principles Of Naval Architecture, Secound Revision, Vol.II - Stability and Strength, the Society of Naval Architects and Marine Enginners.” 1988.

S. A. HARVALD, “Resistance and Propulsion of Ships - Harvald.” 1992.

IMO, “Adoption of The International Code on Intact Stability,” 2008.

M. H. GHAEMI and H. OLSZEWSKI, “Total Ship Operability-Review, Concept and Criteria,” Polish Marit. Res., vol. 24, pp. 74–81, 2017.

M. INSEL and A. F. MOLLAND, “An Investigation Into Resistance Components of High Speed Displacement Catamarans,” RINA, vol. 134, no. January 1992, pp. 1–20, 1992.

ITTC, “Practical Guidelines for Ship CFD Applications,” 2011.

J. MATHIEU, “Turbulent flows,” 2000.

Z. T. SETIABUDI and I. K. UTAMA, “Analisa CFD Hambatan Kapal Katamaran Dengan Stepped Hull Melintang,” vol. 9, no. 2, pp. 1–8, 2020.

S. ROSITA, “Studi Penyusunanan Rencana Induk Pelabuhan Sipinggan Kabupaten Samosir, Puslitbang Transportasi Laut, Sungai, Danau dan Penyeberangan,” 2017.