Browse > Article
http://dx.doi.org/10.5574/KSOE.2017.31.1.001

Radiation Problem Involving Two-layer Fluid in Frequency-Domain Numerical Wave Tank Using Artificial Damping Scheme  

Min, Eun-Hong (Department of Naval Architecture and Ocean Engineering, Inha University)
Koo, Weoncheol (Department of Naval Architecture and Ocean Engineering, Inha University)
Publication Information
Journal of Ocean Engineering and Technology / v.31, no.1, 2017 , pp. 1-7 More about this Journal
Abstract
There are two wave modes induced by an oscillating body on the free surface of a two-layer fluid: the barotropic and baroclinic modes. To investigate the generated waves composed of two modes, a radiation problem involving a heaving rectangular body was solved in a numerical wave tank. A new artificial damping zone scheme was developed and applied in the frequency-domain analysis. The performance of this damping scheme was compared with given radiation boundary conditions for various conditions. The added mass and radiation damping coefficients for the heaving rectangular body were also calculated for various fluid-density ratios.
Keywords
Two-layer fluid; Barotropic mode; Baroclinic mode; Frequency domain; Radiation problem; Artificial damping scheme; Numerical wave tank;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Kim, T.L., Won, J.S., 1999. Observation of Internal Waves at Northern Region of Jeju Island Using SAR. The Korean Society of Oceanography, 4(1), 18-24.
2 Kim, Y.H., 2003. Artificial Damping in Water Wave Problems II: Application to Wave Absorption. International Journal of Offshore and Polar Engineering, 13(2), 94-98.
3 Koo, W.C., Min, E.H., 2015. Numerical Analysis of Internal Waves According to Body Motion in Two-layered Fluids. Proceeding of KAOSTS 2015 in Jeju, Korea, 252-254.
4 Liu, A.K., Chang, Y.S., Hsu, M.K., Liang, N.K., 1998. Evolution of Nonlinear Internal Waves in the East and South China Seas. Journal of Geophysical Research, 103, 7995-8008.   DOI
5 Osborne, A.R, Burch, T.L., Scarlet, R.I., 1978. The Influence of Internal Waves on Deep-water Drilling. Journal of Petroleum Technology, 30(10), 1497-1504.   DOI
6 Pinet, P.R., 1992. Oceanography: an Introduction to the Planet Oceans. West Publishing Company, 571.
7 Ten, I., Kashiwagi, M., 2004. Hydrodynamics of a Body Floating in a Two-layer Fluid of Finite Depth, Part 1. Radiation Problem. Journal of Marine Science and Technology, 9, 127-141.   DOI
8 Yeung, R.W., Nguyen, T., 1999. Radiation and Diffraction of Waves in a Two-layer Fluid. Proceedings of the 22nd Symposium on Naval Hydrodynamics, Washington, D.C., 875-891.
9 Kashiwagi, M., Ten, I., Yasunaga, M., 2006. Hydrodynamics of a Body Floating in a Two-layer Fluid of Finite Depth, Part 2. Diffraction Problem and Wave-induced Motions. Journal of Marine Science and Technology, 11, 150-164.   DOI
10 Alpers, W., La Violette, P.E., 1993. Tide-generated Nonlinear Internal Wave Packets in the Strait of Gibraltar Observed by the Synthetic Aperture Radar aboard the ERS-1 Satellite. Proceedings of the First ERS-1 Symposium - Space at the Service of our Environment Published by ESA, Paris, France, ESA SP-359, 753-758.
11 Kim, H.R., Ahn, S.Y., Kim, K., 2001. Observations of Highly Nonlinear Internal Solitons Generated by Near-inertial Internal waves off the East Coast of Korea. Geophysical Research Letters, 28, 3191-3194.   DOI
12 Kim, M.G., Koo, W.C., 2010. Numerical Analysis of Hydrodynamic Forces on a Floating Body in Two-layer Fluids. Journal of the Society of Naval Architects of Korea. 47(3), 369-376.   DOI