![]() A combined derivation of the integrated and vertically resolved, coupled wave-current equations. The depth-dependent current and wave interaction equations: A revision. The three-dimensional current and surface wave equations. Water Wave Propagation Over Uneven Bottoms World Scientific: London, UK, 1997. The Applied Dynamics of Ocean Surface Waves Wiley: New York, NY, USA, 1983. Cambridge University Press: Cambridge, UK, 1977. Linear and Nonlinear Waves Wiley: New York, NY, USA, 1974. Wavetrains in inhomogeneous moving media. A general approach to linear and non-linear dispersive waves using a Lagrangian. Radiation stresses in water waves-A physical discussion, with applications. Radiation stress and mass transport in gravity waves, with application to ‘surf beats’. The changes in amplitude of short gravity waves on steady non-uniform currents. Changes in the form of short gravity waves on long waves and tidal currents. Wind waves in the coupled climate system. Wave-current interactions during extreme weather conditions in southwest of Bohai Bay, China. On the wave-current interaction during the passage of a tropical cyclone in the bay of bengal. ![]() The impact of surface currents and sea level on the wave field evolution during St. Establishment of the ocean dynamic system with four sub-systems and the derivation of their governing equation sets. A third-generation model for wind-waves on slowly varying, unsteady, and inhomogeneous depths and currents. This led to a loss of the information related to the mechanisms related to wave–current–bottom interaction. However, the gradient of bottom topography in the horizontal y-axis direction is omitted in the paper. This unified wave theory can serve as the theoretical basis for a dynamical explanation of local wave characteristics (e.g., surface gravity wave) under a fairly general ocean with arbitrary topography and vertical and horizontal current shear. proposed a unified linear theory of wavelike perturbations for gravity waves in the presence of the factors imposed by large-scale circulation and found the solution using Fourier integrals. For gravity waves (e.g., (i) surface gravity waves, (ii) internal gravity waves and (iii) inertial gravity waves, etc.), gravity is the common restoring force. In the present paper, we focus on the influence of ocean currents on coastal waves in storm conditions.Īs the scales of gravity waves (10 1 m–10 4 m scale grade) are smaller than those of ocean circulation (about 10 6 m scale grade), gravity waves are treated as perturbations relative to large-scale motions. Wave–current interaction has significant impact on coastal dynamics, storm surges and sediment transport, especially during extreme weather conditions (e.g., tropical cyclones) when wind-induced currents and tidal currents are stronger. In turn, the mean flow is affected by the addition of momentum and mass fluxes due to waves. The propagation of waves along with strong currents changes the wave characteristics in terms of refraction, bottom friction and blocking. As depth and current are treated as being slowly varying, unsteady and inhomogeneous in small-scale (coastal) areas, the wave–current interaction in coastal regions is very complicated. One focus of such research is to investigate the interactions between (slowly varying) ocean current and (highly varying) waves. Interactions exist between ocean motions that have differences in physical characteristics and time-space scales (turbulence, wave-like motion, eddy-like motion and circulation), e.g., wave–current interaction, turbulence–wave interaction, etc. ![]() Accurate simulation results regarding ocean current and waves are useful for offshore engineering, sea transportation and aquaculture. Numerical simulation is one of common research methods used in oceanography. The impact of wave–current interaction is noticeable where the gradient of the sea bottom slope is relatively large. ![]() The results suggest that vertical variation in the amplitude of wave orbital motion is remarkable. In this paper, an implemented instance of this analytic model was given, using the Shengsi area during Typhoon Malakas as an example. Ocean currents affect ocean waves through resonance. ![]() Fourier analysis was applied to solve the governing equation and boundary conditions, and an analytic model for the calculation of the variation of amplitude of wave orbital motion was proposed. This study aimed to analyze and quantify the contribution of storm tidal currents to coastal ocean waves in a case where sea bottom slope was not ignored. Most wave models consider the influence of ocean current and water depth on waves, while the influence of the gradient of the sea bottom slope is not taken into account in most research. Wave–current interaction in coastal regions is significant and complicated. ![]()
0 Comments
Leave a Reply. |