... evolution characteristics of coastal freak waves has important theoretical and engineering significance. reservoir simulation wave group numerical model evolution process agreement wave height equation experimental data surface variation freak wave velocity distribution coastal region...

... ABSTRACT This study focuses on the analysis of the higher harmonic wave moments (around the seabed) on a vertical cylinder under the action of focused wave groups. The moment is known to be more nonlinear than the horizontal wave force; however, it is not very much investigated...

...Identification of Characteristic Wave Groups Causing Parametric Rolling for C11 Container Ship in Irregular Head Seas Sixin Feng, Shan Ma, Wenyang Duan, Binbin Zhao College of Shipbuilding Engineering, Harbin Engineering University. Harbin, Heilongjiang, China ABSTRACT Ship parametric rolling...

... generated in the physical experiments is used to reproduce the incident wave conditions without a priori knowledge of the rest of the dataset. A Lagrangian numerical wave flume propagates the wave group, producing the non-linear free surface elevation and wave kinematics with high accuracy in the vicinity...

... occurs within a wave group. INTRODUCTION Abnormal or rogue waves can suddenly appear in the ocean without any forewarning, which have the potential to cause serious damage to the marine structures such as ship, offshore platform and renewable energy device. Evidence that such extreme events can occur...

... into with energy dissipation model and without energy dissipation model. integration deep water wave breaking breaker equation of state surface elevation non-hydrostatic model dissipation experiment reservoir simulation cell face fluid modeling wave group energy dissipation instability non...

... ABSTRACT A new method to discriminate wave groups is proposed and then used to predict freak waves on sloping bottoms. It's found that initial global wave steepness of isolated wave groups has a linear correlation with the maximal wave heights on the bottoms. A larger global wave steepness...

... model applies the overset mesh technique in order to deal with large amplitude motions induced by the focused wave groups. The generation of the incident wave group is first examined through a mesh convergence test and by comparing with the experimental data. Simulations are then carried out...

... ABSTRACT For the assessment of experimental measurements of focused wave groups impacting a surface-piecing fixed structure, we present a new Fully Nonlinear Potential Flow (FNPF) model for simulation of unsteady water waves. The FNPF model is discretized in three spatial dimensions (3D) using...

... ABSTRACT The present paper summarizes the results for numerical simulation of a fixed FPSO-shaped body in uni-directional phase-focused wave groups, which is prepared as a short report for the CCP-WSI Blind Test Workshop on Focused Wave Impact on a Fixed FPSO at the 28th International Ocean...

... with a random process. From then, there are many investigations using dispersive focused wave groups to generate large transient events both in the laboratory and the numerical flume (Longuet-Higgins, 1980; Baldock et al., 1996; Ning et al., 2009; Huang et al., 2012). characteristic wave maker...

..., SWASH. It was found that freak waves are readily formed at the seaward part of the crest of the bar and gradually emerged from an intense wave group. The enhancement of the bound higher harmonics in the shoaling process is the main reason to form such large waves in shallow water. On the crest bar...

... the assumption of spatial periodicity. A specific example considered in this work deals with the generation of long-waves by short-wave groups propagating and interacting over a sloping seabed. This problem has been extensively studied both experimentally and theoretically, showing important results concerning...

... Wave Forces on Horizontal Cylinder due to Nonlinear Focused Wave Groups Ningbo Gao, Jianmin Yang, Xin Li State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University Shanghai, China Wenhua Zhao Faculty of Engineering, Computing and Mathematics, The University of Western Australia Perth...

... Abstract This paper presents results of wave flume experiments on the interaction of a vertical, slender surface piercing cylinder with extreme waves in the presence and absence of sheared currents. Following, the new-wave approach according to which a deterministic wave group represents...

... focal location numerical model boundary condition openfoam boundary interaction nonlinear wave group inlet boundary upstream oil & gas surface elevation nwt spectrum linear part engineering wave component ihfoam wave-wave interaction swash wave group input signal...

... Abstract Based on the second-order wave theory, a new deterministic method for simulating irregular wave groups is proposed. The analyzed results demonstrate that the numerically simulated second-order waves satisfy the expected wave groupiness besides the prescribed wave spectrum. Further...

... ABSTRACT Wave run-ups and pressures exerted on vertical walls have been recognized as a dominant factor by coastal engineers, which is essential in the design of coastal structures. In this study, a 2D numerical model for focused wave group action on a vertical wall is founded based...

... ABSTRACT: Wave groupiness is an important characteristic of ocean waves, and waves in quick succession are regarded as wave groups, which affects the behavior of a moored ship system directly. As a need for understanding the interaction between groupiness and the motion behavior of a moored...

... and pure focused wave groups. Then the influence of uniform currents on the properties of the focused waves, including maximum focused wave crest, shift of focal position and focal time and spectrum bandwidth, is further studied. INTRODUCTION In the complicated ocean environments, there may exist some...