2014
DOI: 10.1590/s1679-78252014000100004
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Nonlinear wave transmission and pressure on the fixed truncated breakwater using NURBS numerical wave tank

Abstract: Fully nonlinear wave interaction with a fixed breakwater is investigated in a numerical wave tank (NWT). The potential theory and high-order boundary element method are used to solve the boundary value problem. Time domain simulation by a mixed Eulerian-Lagrangian (MEL) formulation and high-order boundary integral method based on non uniform rational B-spline (NURBS) formulation is employed to solve the equations. At each time step, Laplace equation is solved in Eulerian frame and fully non-linear free-surface… Show more

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Cited by 16 publications
(8 citation statements)
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“…7, numerical results indicated that the second-order nonlinear wave form have a slightly steeper crest. This phenomenon was also cited and discussed by Abbasnia and Ghiasi [26], they pointed out that instability occurs for some time step in the second order solution. However, smoothing scheme usually applied to avoid the instability.…”
Section: Accuracy and Stability Check Of The Numerical Modelmentioning
confidence: 63%
“…7, numerical results indicated that the second-order nonlinear wave form have a slightly steeper crest. This phenomenon was also cited and discussed by Abbasnia and Ghiasi [26], they pointed out that instability occurs for some time step in the second order solution. However, smoothing scheme usually applied to avoid the instability.…”
Section: Accuracy and Stability Check Of The Numerical Modelmentioning
confidence: 63%
“…NURBS (Non-Uniform Rational B-Splines) is a powerful mathematical model to express complex curves and surfaces due to its generality, and has been widely used in contemporary Computer-Aided Design (CAD) systems and Computer Aided Geometric Design (CAGD) [1][2][3][4][5][6][7]. NURBS is also promulgated by ISO to be the unique mathematical method for defining industrial product shapes in STEP.…”
Section: Introductionmentioning
confidence: 99%
“…The relationship between man-made structures and the ocean environment is an essential issue in Oceanic Engineering. Since all the structures in offshore and coastal areas -such as Floating Breakwaters (FBWs) -are exposed to water waves, it is necessary to analyze the effects of such structures on the surrounding wave domain (Abbasnia and Ghiasi (2014); Shahrabi and Bargi (2019)). By assuming linear waves and employing the superposition principle, in the investigation of wave-floating structures interaction, two distinct phenomena should be considered (Abul-Azm and Gesraha, 2000;Kao et al, 2015;Cho, 2016).…”
Section: Introductionmentioning
confidence: 99%