Results 31 to 40 of about 33,394 (283)

A Numerical Study on the Performance of the 66k DWT Bulk Carrier in Regular and Irregular Waves

open access: yesJournal of Marine Science and Engineering, 2023
Accurate resistance performance evaluation is essential to predict the minimum propulsion horsepower required for ships in real sea. Therefore, in this paper, the added resistance performance of K-Supramax in various wave conditions was calculated using ...
Gu-Hyeon Kim   +6 more
doaj   +1 more source

Improvement of hull form for an 1,800 TEU containership toward reduced fuel consumption under in-service conditions

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2023
In the present study, the hull form of an 1,800 TEU containership was developed to reduce fuel consumption under real operation conditions. Contrary to the conventional hull form design practice in terms of the calm-sea performance, the hull form design ...
Yurim Cho   +6 more
doaj   +1 more source

Bow design for low added resistance in waves [PDF]

open access: yes, 2023
Med tanke på å redusere utslipp fra sjøtrafikken er jakten på et skips effektivitet avgjørende. I sjøen er bølger ansvarlig for ekstra motstand og øker energien som trengs for å bevege skipet fremover. Ekstra motstand er definert som forskjellen mellom den totale motstanden til et skip underveis i sjøen og motstanden i stille vann. Et skips baug har en
Kuntz, Raphaël
openaire   +2 more sources

Study on the Added Resistance of Barge in Waves [PDF]

open access: yesJournal of Korean navigation and port research, 2010
선박이 파랑중을 항행할 경우에는 정수중에 비하여 저항이 증가하기 때문에 예부선의 안정성 확보를 위해 예선의 예인마력과 예인삭의 절단하중 등을 산정할 때에 부선의 정수중 저항값 및 파랑중 저항값을 정확히 추정해야 안전한 예항업무를 이행할 수 있다. 현재 정부에서 제안하고 있는 방법에 의하면 부선의 전저항 산정시 마찰저항, 조파저항, 공기저항은 선체의 형상 및 예선의 속력 등을 고려하여 산정하지만 부가저항은 유의파고에 따라 일률적으로 적용하고 있다.
Byung-Kil Ahn, Sang-Min Lee
openaire   +1 more source

RANS Prediction of Wave-Induced Ship Motions, and Steady Wave Forces and Moments in Regular Waves

open access: yesJournal of Marine Science and Engineering, 2021
The wave-induced motions, and steady wave forces and moments for the oil tanker KVLCC2 in regular head and oblique waves are numerically predicted by using the expanded RANS solver based on OpenFOAM.
Qingze Gao, Lifei Song, Jianxi Yao
doaj   +1 more source

Experimental Investigation of a Wave-Piercing Trimaran on the Outrigger Configurations in terms of Seakeeping and Added Resistance [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
The outrigger symmetry of a trimaran is believed to significantly affect its hydrodynamic functioning. The present study was conducted to investigate the added resistance responses and experimental vertical motion of a wave-piercing trimaran in regular ...
A. Askarian Khoob   +2 more
doaj   +1 more source

Calculation of Added Resistance in Oblique Waves

open access: yesJournal of the Society of Naval Architects of Japan, 1980
The formula for the added resistance of a ship in oblique waves is simplified by the assumption of high frequency of encounter. Numerical computations by the simplified formula are carried out with respect to the Series 60, CB=0.70 model at various heading angles to the wave.
Hajime Maruo, Kazuo Iwase
openaire   +2 more sources

Effects of a Bulbous Bow Shape on Added Resistance Acting on the Hull of a Ship in Regular Head Wave

open access: yesJournal of Marine Science and Engineering, 2021
In this study, the effect of bow shape on resistance acting on a hull in regular head waves was investigated by applying a commercial Computational Fluid Dynamics (CFD) code.
Trung-Kien Le   +3 more
doaj   +1 more source

Environmental Aspects of Total Resistance of Container Ship in the North Atlantic

open access: yesJournal of Sustainable Development of Energy, Water and Environment Systems, 2019
The total resistance of ship in waves is composed of calm water resistance and added resistance in waves. The added resistance in waves is one of the main causes of an involuntary speed reduction of a ship.
Nastia Degiuli   +2 more
doaj   +1 more source

Experimental Investigation of Added Resistance of a Ship using a Hydroelastic Body in Waves

open access: yesInternational Journal of Technology, 2022
Ship resistance is an important characteristic to predict in the preliminary design stage. Proper prediction of ship resistance implies the fulfillment of the required speed and power of a ship.
Suandar Baso   +4 more
doaj   +1 more source

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