1–20 von 20 Ergebnissen
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    Empirical mode decomposition based on Fourier transform and band-pass filter

    Freier Zugriff
    Zheng-Shou Chen / Shin Hyung Rhee / Gui-Lin Liu | DOAJ | 2019
    A novel empirical mode decomposition strategy based on Fourier transform and band-pass filter techniques, contributing to efficient ...
    Schlagwörter: Ocean engineering , Naval architecture. Shipbuilding. Marine engineering

    Validation of 4DOF maneuvering coefficients optimization using hydrodynamic force and moment estimated from free-running model test results

    Freier Zugriff
    Kiwon Kim / Sungeun Choi / Jeonghwa Seo et al. | DOAJ | 2024
    results. The suggested model adequately predicts hydrodynamic force and moment in highly coupled sway and yaw motion. ...
    Schlagwörter: Ocean engineering , Naval architecture. Shipbuilding. Marine engineering

    Identification of 4-DoF maneuvering mathematical models for a combatant in intact and damaged conditions

    Freier Zugriff
    Myungjun Jeon / Hyeon Kyu Yoon / Jongyeol Park et al. | DOAJ | 2022
    This article introduces the process of identifying the dynamics models of a combatant in intact and damaged condition based on the measured ...
    Schlagwörter: Ocean engineering , Naval architecture. Shipbuilding. Marine engineering

    Uncertainty assessment for a towed underwater stereo PIV system by uniform flow measurement

    Freier Zugriff
    Bum Woo Han / Jeonghwa Seo / Seung Jae Lee et al. | DOAJ | 2018
    Velocimetry (SPIV) system in a towing tank. The systematic uncertainty of the SPIV system was estimated from repeated uniform flow measurements. In ...
    Schlagwörter: Ocean engineering , Naval architecture. Shipbuilding. Marine engineering

    Numerical and experimental investigation on the performance of three newly designed 100 kW-class tidal current turbines

    Freier Zugriff
    Museok Song / Moon-Chan Kim / In-Rok Do et al. | DOAJ | 2012
    turbines is tested in a towing tank with 700 mm models. The scale problem is carefully investigated and the measurements are compared with the CFD ...
    Schlagwörter: Ocean engineering , Naval architecture. Shipbuilding. Marine engineering

    Model tests on resistance and seakeeping performance of wave-piercing high-speed vessel with spray rails

    Freier Zugriff
    Jeonghwa Seo / Hak-Kyu Choi / Uh-Cheul Jeong et al. | DOAJ | 2016
    The resistance and seakeeping performance of a high-speed monohull vessel were investigated through a series of model tests in a towing ...
    Schlagwörter: Ocean engineering , Naval architecture. Shipbuilding. Marine engineering

    An experimental study on the stern bottom pressure distribution of a high-speed planing vessel with and without interceptors

    Freier Zugriff
    Woochan Seok / Sae Yong Park / Shin Hyung Rhee | DOAJ | 2020
    In this study, the effects of hydrodynamic interceptors on a high-speed vessel were investigated to identify the operating principle based ...
    Schlagwörter: Ocean engineering , Naval architecture. Shipbuilding. Marine engineering

    Prediction of velocity and attitude of a yacht sailing upwind by computational fluid dynamics

    Freier Zugriff
    Heebum Lee / Mi Yeon Park / Sunho Park et al. | DOAJ | 2016
    Institute of Ship and Ocean (KRISO) and termed KORDY30, were predicted in upwind sailing condition. ...
    Schlagwörter: Ocean engineering , Naval architecture. Shipbuilding. Marine engineering

    Numerical optimization of Wells turbine for wave energy extraction

    Freier Zugriff
    Paresh Halder / Shin Hyung Rhee / Abdus Samad | DOAJ | 2017
    corresponding efficiency are enhanced, and the results are analysed using CFD simulations. Two extreme designs in the Pareto solutions show that the ...
    Schlagwörter: Ocean engineering , Naval architecture. Shipbuilding. Marine engineering

    Experimental study on the effects of stern bulb arrangement on the slamming load

    Freier Zugriff
    Jongyeol Park / Ju Hyuck Choi / Hyun-ho Lee et al. | DOAJ | 2020
    drop tests were distributed between empirical formula and analytic solution, so the experimental setup was validated. In the cases of practical ...
    Schlagwörter: Ocean engineering , Naval architecture. Shipbuilding. Marine engineering

    Maneuvering simulation of an X-plane submarine using computational fluid dynamics

    Freier Zugriff
    Yong Jae Cho / Woochan Seok / Ki-Hyeon Cheon et al. | DOAJ | 2020
    X-plane submarines show better maneuverability as they have much longer span of control plane than that of cross plane submarines. In this ...
    Schlagwörter: Ocean engineering , Naval architecture. Shipbuilding. Marine engineering

    Experimental study on the towing stability of a towed underwater object

    Freier Zugriff
    Jongyeol Park / Shin Hyung Rhee / Jong-Beom Im et al. | DOAJ | 2023
    employed, and the attitude of a towed object was measured by an inertial measurement unit. The towed object's geometry and the position of the ...
    Schlagwörter: Ocean engineering , Naval architecture. Shipbuilding. Marine engineering

    Application of Monte Carlo simulationsto uncertainty assessment of ship powering prediction by the 1978 ITTC method

    Freier Zugriff
    Jeonghwa Seo / Jongyeol Park / Seok Cheon Go et al. | DOAJ | 2021
    scale. The error propagation through an extrapolation procedure is investigated in terms of the sensitivity and coefficient of determination. By ...
    Schlagwörter: Ship resistance and propulsion , Ocean engineering , Naval architecture. Shipbuilding. Marine engineering

    Experimental study on the propulsion performance of a partially submerged propeller

    Freier Zugriff
    Jeongsoo Ha / Jongyeol Park / Gyukpo Park et al. | DOAJ | 2023
    propulsion performance, the force and moment were measured, and the ventilation phenomena were visualized with respect to submergence ratios and ...
    Schlagwörter: Loss of thrust and torque , Ocean engineering , Naval architecture. Shipbuilding. Marine engineering

    Computational simulations of transitional flows around turbulence stimulators at low speeds

    Freier Zugriff
    Sang Bong Lee / Woochan Seok / Shin Hyung Rhee | DOAJ | 2021
    In this study, direct numerical and large eddy simulations of transitional flows around studs were conducted to investigate the ...
    Schlagwörter: Ocean engineering , Naval architecture. Shipbuilding. Marine engineering

    Flexible CFD meshing strategy for prediction of ship resistance and propulsion performance

    Freier Zugriff
    Jeong Hwa Seo / Dong Myung Seol / Ju Hyun Lee et al. | DOAJ | 2010
    In the present study, we conducted resistance test, propeller open water test and self-propulsion test for a ship's resistance and ...
    Schlagwörter: Ocean engineering , Naval architecture. Shipbuilding. Marine engineering

    Effect of waterjet intake plane shape on course-keeping stability of a planing boat

    Freier Zugriff
    Kyurin Park / Dong Jin Kim / Sun Young Kim et al. | DOAJ | 2021
    patterns and pressure distributions. In this study, the effects of the waterjet intake shapes of planing boats on the course-keeping stabilities ...
    Schlagwörter: Ocean engineering , Naval architecture. Shipbuilding. Marine engineering

    Investigation on the wall function implementation for the prediction of ship resistance

    Freier Zugriff
    Sunho Park / Se Wan Park / Shin Hyung Rhee et al. | DOAJ | 2013
    the turbulent flow around a ship, and the one without the assumption of the equilibrium state between turbulent production and dissipation in ...
    Schlagwörter: Ocean engineering , Naval architecture. Shipbuilding. Marine engineering

    Towed underwater PIV measurement for free-surface effects on turbulent wake of a surface-piercing body

    Freier Zugriff
    Dong Myung Seol / Jeong Hwa Seo / Shin Hyung Rhee | DOAJ | 2013
    In the present study, a towed underwater particle image velocimetry (PIV) system was validated in uniform flow and used to investigate the ...
    Schlagwörter: Ocean engineering , Naval architecture. Shipbuilding. Marine engineering

    Preliminary tests of a damaged ship for CFD validation

    Freier Zugriff
    Sungkyun Lee / Ji-Myoung You / Hyun-Ho Lee et al. | DOAJ | 2012
    safety level requirements, the hull stability in intact and damaged conditions is the first to ensure for both commercial and military vessels ...
    Schlagwörter: Ocean engineering , Naval architecture. Shipbuilding. Marine engineering