Resistance Analysis for the Application of Flowbow on DTMB 5415 Ship

Authors

  • Arga Setya Andreardani Department of Naval Architecture, Sepuluh Nopember Institute of Technology (ITS) , Surabaya, 60117, Indonesia
  • I Ketut Suastika Department of Naval Architecture, Sepuluh Nopember Institute of Technology (ITS) , Surabaya, 60117, Indonesia
  • Baharuddin Ali Research Center for Hydrodynamics Technology, BRIN, Surabaya, 60117, Indonesia
  • Taufiq Arif Setyanto Research Center for Hydrodynamics Technology, BRIN, Surabaya, 60117, Indonesia
  • Mahendra Indiaryanto Research Center for Hydrodynamics Technology, BRIN, Surabaya, 60117, Indonesia
  • Amalia Ika Wulandari Department of Naval Architecture, Institut Teknologi Kalimantan, 76127, Balikpapan, Indonesia
  • Anson Novendra Pradana West Japan Fluid Engineering Laboratory CO., LTD. Japan

DOI:

https://doi.org/10.35718/ismatech.v4i1.8481997

Keywords:

bulbous-bow, CFD, Ship Resistance, semi-displacement, flowbow

Abstract

Flowbow is an innovation designed by Rasmussen to increase fuel efficiency by reducing wave making resistance of ship. It is claimed that Flowbow can reduce the resistance of displacement and semi-displacement hull type at Froude number (Fr) over 0.25 to 0.28. On a warship, resistance reduction can increase the patrolling endurance by reducing energy used to moving. This research comparing the hull of DTMB 5415 model, which is already using bulbous bow and the modified DTMB 5415 hull with the addition of Flowbow using CFD which is validated by EFD. The results show that the addition of a Flowbow reduces ship resistance at Fr greater than 0.249 and the resistance reduction increases as the ship speed increases. At the highest tested speed (Fr = 0.352), the total resistance reduction reaches 8.57%.

Author Biographies

I Ketut Suastika, Department of Naval Architecture, Sepuluh Nopember Institute of Technology (ITS) , Surabaya, 60117, Indonesia

Lecturer of Department Naval Architecture and Shipbuilding Engineering, Sepuluh Nopember Institute of Technology, Surabaya. 

Baharuddin Ali, Research Center for Hydrodynamics Technology, BRIN, Surabaya, 60117, Indonesia

Researcher of National Research and Inovation Agency, Indonesia.

Taufiq Arif Setyanto, Research Center for Hydrodynamics Technology, BRIN, Surabaya, 60117, Indonesia

Researcher of National Research and Inovation Agency, Indonesia

Mahendra Indiaryanto, Research Center for Hydrodynamics Technology, BRIN, Surabaya, 60117, Indonesia

Researcher of National Research and Inovation Agency, Indonesia

Amalia Ika Wulandari, Department of Naval Architecture, Institut Teknologi Kalimantan, 76127, Balikpapan, Indonesia

Lecturer of Department Naval Architecture, Kalimantan Institute of Technology

Anson Novendra Pradana, West Japan Fluid Engineering Laboratory CO., LTD. Japan

Researcher of Department of Hull Form Development, West Japan Fluid Engineering Laboratory CO., LTD.

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Published

2026-06-15

How to Cite

Andreardani, A. S., Suastika, I. K., Ali, B., Setyanto, T. A., Indiaryanto, M., Wulandari, A. I., & Pradana, A. N. (2026). Resistance Analysis for the Application of Flowbow on DTMB 5415 Ship . Indonesian Journal of Maritime Technology, 4(1). https://doi.org/10.35718/ismatech.v4i1.8481997

Issue

Vol. 4 No. 1 (2026): Volume 4 Issue 1, June 2026

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Articles

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Copyright (c) 2026 Arga Setya Andreardani, I Ketut Suastika, Baharuddin Ali, Taufiq Arif Setyanto, Mahendra Indiaryanto, Amalia Ika Wulandari, Anson Novendra Pradana

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