Transfer and Dissipation of Wave Energy under Surf-Zone Breaking Waves

Source: ICHE Conference Archive - https://mdi-de.baw.de/icheArchiv

Applying Time-Stack Wave Image to Separate Incident and Reflected Waves in Random Waves

Source: ICHE Conference Archive - https://mdi-de.baw.de/icheArchiv

Measurement of the Near-Bed Turbulence in a Laboratory Surf Zone

Source: ICHE Conference Archive - https://mdi-de.baw.de/icheArchiv

Effects of currents on super-and sub-harmonic waves in a two-fluid system

Abstract Effects of currents on wave motions in a two-fluid system are theoretically studied in this paper. Since super-and sub-harmonic waves are naturally generated by the interaction of arbitrary linear waves, it is of theoretical and practical interest to investigate the influence of pure currents not only on linear waves, but also on second-order waves. Solutions are derived using the perturbation technique. Internal Stokes waves recovered from present solutions are firstly discussed. Analyses of the super-and sub-harmonic interactions are carried out for the deep-and shallow-water configurations, respectively. Conditions resulting in the elimination of second-order waves are determined. Present solutions include and unify most existing theories for two-and single-fluid systems, and are of great importance to the analysis of random internal waves

Fundamental Properties of Integrated-Depth Equations for Nonlinear Water Propagation in Porous Media

Source: ICHE Conference Archive - https://mdi-de.baw.de/icheArchiv

Experimental and Numerical Study of Tsunami Wave Propagation and Run-Up on Sloping Beaches

Source: ICHE Conference Archive - https://mdi-de.baw.de/icheArchiv

Land Subsidence Caused by Groundwater Exploitation in Yunlin, Taiwan

Source: ICHE Conference Archive - https://mdi-de.baw.de/icheArchive

OMAE2003-37087 MULTI-LAYER MODELING OF WAVE GROUPS FROM DEEP TO SHALLOW WATER

ABSTRACT A set of model equations for water wave propagation is derived by piecewise integration of the primitive equations of motion through N arbitrary layers. Within each layer, an independent velocity profile is determined. With N separate velocity profiles, matched at the interfaces of the layers, the resulting set of equations have N+1 free parameters, allowing for an optimization with known analytical properties of water waves. The optimized two-layer model equations show good linear wave characteristics up to kh ≈8, while the second-order nonlinear behavior is well captured to kh ≈6. The three-layer model shows good linear accuracy to kh ≈14, and the four layer to kh ≈20. A numerical algorithm for solving the model equations is developed and tested against nonlinear deep-water wave-group experiments, where the kh of the carrier wave in deep water is around 6. The experiments are set up such that the wave groups, initially in deep water, propagate up a constant slope until reaching shallow water. The overall comparison between the multi-layer model and the experiment is quite good, indicating that the multilayer theory has good nonlinear, as well has linear, accuracy for deep-water waves. Introduction The past decade saw the advent and wide spread applications of Boussinesq-type equation models for studying water wave propagation in one and two horizontal dimensions. This depthintegrated modeling approach employs a polynomial approxima