Zobrazeno 1 - 10
of 86
pro vyhledávání: '"Kwang-Jun Paik"'
Publikováno v:
International Journal of Naval Architecture and Ocean Engineering, Vol 16, Iss , Pp 100618- (2024)
Propellers produce fluctuating thrust and torque as they rotate in a non-uniform wake field. They contribute most of the vibration and noise generated by the propeller and can lead to mechanical damage to shafts and bearings. Recently, the demand for
Externí odkaz:
https://doaj.org/article/eb4c7b007aa140fe9a7e7c427daa97e7
Publikováno v:
International Journal of Naval Architecture and Ocean Engineering, Vol 16, Iss , Pp 100578- (2024)
The shape of the slit that injects the jet from the surface of the propeller was optimized through numerical computations. The high-pressure drop on the propeller surface caused by jet injection could be improved by modifying the hydrofoil geometry o
Externí odkaz:
https://doaj.org/article/80da191fb0d349f9a5fb1fcfe2d95657
Publikováno v:
International Journal of Naval Architecture and Ocean Engineering, Vol 16, Iss , Pp 100560- (2024)
In general, the resistance of a real ship is estimated using an extrapolation method after doing experimental tests or numerical simulations with a model scale ship. Since the only Froude similarity is applied in the model test and simulation, the fl
Externí odkaz:
https://doaj.org/article/cabd0de984b74cbc80a41dde47a1dd97
Publikováno v:
International Journal of Naval Architecture and Ocean Engineering, Vol 16, Iss , Pp 100563- (2024)
Research on multidirectional waves is increasing as studies on added resistance advance. In this study, the added resistance of the multidirectional regular waves of the KCS hull was estimated by numerical analysis. The direction of the grid was chan
Externí odkaz:
https://doaj.org/article/266360c6261f4c9f9bb2b63b55940ec2
Autor:
Gu-Hyeon Kim, Seunghyun Hwang, Soon-Hyun Lee, Jun-Hee Lee, Jun Hwangbo, Kwang-Soo Kim, Kwang-Jun Paik
Publikováno v:
Journal of Marine Science and Engineering, Vol 11, Iss 10, p 1913 (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 us
Externí odkaz:
https://doaj.org/article/6dfce58e54904877bffadac30c5b61b6
Publikováno v:
Journal of Marine Science and Engineering, Vol 11, Iss 9, p 1726 (2023)
The importance of accurate ship performance estimation is increasing for efficient ship operation. Ship performance has been evaluated through model tests in the past, but there are limitations in terms of facilities and costs. With the spread of hig
Externí odkaz:
https://doaj.org/article/ab9ece59e2a445848c20ef9c0929a440
Publikováno v:
한국해양공학회지, Vol 35, Iss 1, Pp 24-37 (2021)
As one of the development directions of high-performance ships to reduce greenhouse gas emissions, there is research on high-performance propellers. However, in the case of conventional screw propellers, as they have been studied for a long time, the
Externí odkaz:
https://doaj.org/article/b0742eee82db4eaf86d6c9847e6310bb
Publikováno v:
한국해양공학회지, Vol 34, Iss 6, Pp 387-393 (2020)
Frictional resistance comprises more than 60% of the total resistance for most merchant ships. Active and passive devices have been used to reduce frictional resistance, but the most effective and practical device is an air lubrication system. Such s
Externí odkaz:
https://doaj.org/article/17bc004ce21641b18eca9b7c3b94666c
Publikováno v:
International Journal of Naval Architecture and Ocean Engineering, Vol 12, Iss , Pp 270-282 (2020)
Analysis: of the propulsion performance considering ship motion in waves is an important factor for the efficient operation of a ship. The interaction between the propeller and the free surface due to the ship motion in waves has a significant influe
Externí odkaz:
https://doaj.org/article/2d53bf1bc8a24b6ca4e4b32f0ca0751b
Publikováno v:
International Journal of Naval Architecture and Ocean Engineering, Vol 12, Iss , Pp 501-517 (2020)
Three-dimensional numerical simulations were performed to study the effects of flow direction and flow velocity on the flow regime behind a curved pipe represented by a curved circular cylinder. The cylinder is based on a previous study and consists
Externí odkaz:
https://doaj.org/article/c28832c6d70d41f5ab2c7c89300ceec8