Results 21 to 30 of about 114,389,400 (308)

Numerical Investigation of the 6-DOF Seakeeping Performances of the KCS Containership

open access: yesJournal of Marine Science and Engineering, 2022
The topic of the present paper subscribes to one of the most challenging themes that are nowadays under the spotlight of the scientific community.
Adrian Lungu
doaj   +1 more source

Prediction of resistance and propulsion performances using calm-water and resistance tests in regular head waves of a 1,800 TEU container ship

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2022
This paper predicts resistance and propulsion performances in regular and irregular head waves of a 1800 TEU container ship. ‘Calm-water tests’ and ‘resistance test in regular waves’ have been performed. Methods applied are the LVM-W and the revised ITTC-
Jin-Won Yu   +5 more
doaj   +1 more source

Numerical prediction method of shafting power characteristics of free self-propelled ship in waves

open access: yesZhongguo Jianchuan Yanjiu, 2022
ObjectiveTo investigate ship power characteristics and the difference between the towing model and self-propulsion model for ship motion response in waves, numerical simulations of ship self-propulsion performance in waves are carried out. MethodsIn this
Jiawei YU   +4 more
doaj   +1 more source

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

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

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

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

Comparative Study on Added Resistance and Seakeeping Performance of X-Bow and Wave-Piercing Monohull in Regular Head Waves

open access: yesJournal of Marine Science and Engineering, 2022
Bow shape has been recognized as an important factor influencing the seakeeping performance and added resistance of ships. This paper presents a numerical comparative study on added resistance and seakeeping of model ships with ‘X-bow’ and a wave ...
Shuling Chen   +3 more
doaj   +1 more source

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