Improvement of rudder-bulb-fin system in ship and propeller wake field of KVLCC2 tanker in calm water

Tho Quang Truong, Ping-Chen Wu, Junichiro Kishi, Yasuyuki Toda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, we present a study on the energy-saving devices which is probably called Rudder-Bulb-Fin systems, designed for KVLCC2 tanker. The addition of horizontal fins which is installed on rudder for both sides can significantly reduce drag force in some applications. Several simulating cases of fin such as adjusting the angle of attack of fins, twisted fin, location of fins on rudder or even cutting starboard side fin have been designed and simulated using CFDSHIP-Iowa V4.5 code. The simulation results for those cases are validated by experiment; which are conducted in towing tank of Osaka University with fully loaded conditions at Froude number of 0.142. The flow field is measured in calm water using stereo particle image velocimetry at the downstream. The CFD and experimental fluid dynamics results showed a good agreement with the same test conditions. The total resistance by this design could be reduced a significant percentage amount and improved the propulsive efficiency by comparing with previous designs.

Original languageEnglish
Title of host publicationProceedings of the 28th International Ocean and Polar Engineering Conference, ISOPE 2018
PublisherInternational Society of Offshore and Polar Engineers
Pages184-190
Number of pages7
ISBN (Print)9781880653876
Publication statusPublished - 2018 Jan 1
Event28th International Ocean and Polar Engineering Conference, ISOPE 2018 - Sapporo, Japan
Duration: 2018 Jun 102018 Jun 15

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
Volume2018-June
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Other

Other28th International Ocean and Polar Engineering Conference, ISOPE 2018
CountryJapan
CitySapporo
Period18-06-1018-06-15

Fingerprint

Propellers
Ships
Ship model tanks
Froude number
Angle of attack
Fluid dynamics
Velocity measurement
Drag
Water
Flow fields
Energy conservation
Computational fluid dynamics
Experiments

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Ocean Engineering
  • Mechanical Engineering

Cite this

Truong, T. Q., Wu, P-C., Kishi, J., & Toda, Y. (2018). Improvement of rudder-bulb-fin system in ship and propeller wake field of KVLCC2 tanker in calm water. In Proceedings of the 28th International Ocean and Polar Engineering Conference, ISOPE 2018 (pp. 184-190). (Proceedings of the International Offshore and Polar Engineering Conference; Vol. 2018-June). International Society of Offshore and Polar Engineers.
Truong, Tho Quang ; Wu, Ping-Chen ; Kishi, Junichiro ; Toda, Yasuyuki. / Improvement of rudder-bulb-fin system in ship and propeller wake field of KVLCC2 tanker in calm water. Proceedings of the 28th International Ocean and Polar Engineering Conference, ISOPE 2018. International Society of Offshore and Polar Engineers, 2018. pp. 184-190 (Proceedings of the International Offshore and Polar Engineering Conference).
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Truong, TQ, Wu, P-C, Kishi, J & Toda, Y 2018, Improvement of rudder-bulb-fin system in ship and propeller wake field of KVLCC2 tanker in calm water. in Proceedings of the 28th International Ocean and Polar Engineering Conference, ISOPE 2018. Proceedings of the International Offshore and Polar Engineering Conference, vol. 2018-June, International Society of Offshore and Polar Engineers, pp. 184-190, 28th International Ocean and Polar Engineering Conference, ISOPE 2018, Sapporo, Japan, 18-06-10.

Improvement of rudder-bulb-fin system in ship and propeller wake field of KVLCC2 tanker in calm water. / Truong, Tho Quang; Wu, Ping-Chen; Kishi, Junichiro; Toda, Yasuyuki.

Proceedings of the 28th International Ocean and Polar Engineering Conference, ISOPE 2018. International Society of Offshore and Polar Engineers, 2018. p. 184-190 (Proceedings of the International Offshore and Polar Engineering Conference; Vol. 2018-June).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Truong TQ, Wu P-C, Kishi J, Toda Y. Improvement of rudder-bulb-fin system in ship and propeller wake field of KVLCC2 tanker in calm water. In Proceedings of the 28th International Ocean and Polar Engineering Conference, ISOPE 2018. International Society of Offshore and Polar Engineers. 2018. p. 184-190. (Proceedings of the International Offshore and Polar Engineering Conference).