Internal generation of waves on an arc in a rectangular grid system
- Title
- Internal generation of waves on an arc in a rectangular grid system
- Author
- 윤성범
- Keywords
- internal generation of waves; arc-shaped line source; time-dependent; extended mild-slope equations; finite difference method
- Issue Date
- 2007-04
- Publisher
- ELSEVIER SCIENCE BV
- Citation
- COASTAL ENGINEERING, v. 54, No. 4, Page. 357-368
- Abstract
- This paper presents a technique to generate waves at oblique angles in finite difference numerical models in a rectangular grid system by using internal generation technique [Lee, C., Suh, K.D., 1998. Internal generation of waves for time-dependent mild-slope equations. Coast. Eng. 34, 35-57.] along an arc-shaped line source. Tests were made for four different types of wave generation layouts. Quantitative experiments were conducted under the following conditions: the propagation of waves on a flat bottom, the refraction and shoaling of waves on a planar slope, and the diffraction of waves to a semi-infinite breakwater. Numerical experiments were conducted using the extended mild-slope equations of Sub et al. [Suh, K.D., Lee, C., Park, WS., 1997. Time-dependent equations for wave propagation on rapidly varying topography. Coast. Eng. 32, 91-117.]. The fourth layout type consisting of two parallel lines connected to a semicircle showed the best solutions, especially for a small grid size. This technique is useful for the numerical simulation of irregular waves with broad-banded directional spectrum using conventional spectral wave models for the reasonable estimation of bottom friction and wave-breaking. (C) 2006 Elsevier B.V. All rights reserved.
- URI
- https://www.sciencedirect.com/science/article/pii/S0378383906001888https://repository.hanyang.ac.kr/handle/20.500.11754/106421
- ISSN
- 0378-3839
- DOI
- 10.1016/j.coastaleng.2006.11.004
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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