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- W3029239340 abstract "Abstract We present a numerical method that allows for the efficient solution of general linear water-wave problems with multiple arbitrarily shaped bodies and seabed geometry when the number of unknowns in the problem N is large. The problem domain is divided into an internal region that is modeled using a simple-source boundary integral equation and an outer domain of uniform water depth. The contribution of this work is in introducing an adpative fast-multipole method to the solution procedure, thereby changing the complexity of the problem from O(N3) (or O(N2) with iterative solvers) to O(N) when N is large. The memory requirements scale linearly with N as well. This methodology is needed when the number of bodies is large, when structures with complex shapes are modeled, or when the bottom topography for a problem varies considerably. We use the procedure developed to study the effects of topography over two case examples of floating bodies: 4 truncated vertical cylinders over a bottom protrusion, for which results indicate how variations in topography cause changes to wave loads on the bodies and a configuration of 16 cylinders (with N ~ 150, 000) and the effects of the variable ocean floor are again considered." @default.
- W3029239340 created "2020-06-05" @default.
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- W3029239340 date "2020-08-01" @default.
- W3029239340 modified "2023-10-18" @default.
- W3029239340 title "A fast multipole boundary element method for the three dimensional linear water wave-structure interaction problem with arbitrary bottom topography" @default.
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- W3029239340 doi "https://doi.org/10.1016/j.enganabound.2020.04.004" @default.
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