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http://dx.doi.org/10.3744/SNAK.2020.57.5.278

An Effect of Numerical Region with High Resolution for Kelvin Wave on Ship Resistance  

Kang, Min Jae (Department of Naval Architecture and Offshore Engineering, Dong-A University)
Oh, Seok Hwan (Department of Naval Architecture and Ocean Engineering, Pusan National University)
Kim, Chan Woo (Department of Naval Architecture and Offshore Engineering, Dong-A University)
Yoon, Mi Jin (Department of Naval Architecture and Offshore Engineering, Dong-A University)
Lee, Sang Bong (Department of Naval Architecture and Offshore Engineering, Dong-A University)
Publication Information
Journal of the Society of Naval Architects of Korea / v.57, no.5, 2020 , pp. 278-286 More about this Journal
Abstract
Reynolds-averaged Navier-Stokes simulations have been performed to investigate an effect of numerical region with high resolution for Kelvin wave around KRISO container ship on its resistance. In the present study, 13 millions cells were used to describe wave profile along the ship hull and Kelvin wave patterns. In order to control a size of numerical region with high resolution for waves around the hull, we employed relaxation zones from a side boundary of numerical domain in which Kelvin wave was suppressed. When the far-field Kelvin wave was not precisely resolved due to the relaxation zone, the instantaneous history of ship resistance was affected although the time average of ship resistance showed -1.15~2.1 % errors. Especially, the damping characteristics of ship resistance in time history was significant when using a large relaxation zone in the side boundary.
Keywords
Kelvin wave; Ship resistance; Relaxation zone; OpenFOAM;
Citations & Related Records
Times Cited By KSCI : 9  (Citation Analysis)
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