搜索结果: 1-15 共查到“海洋物理学 finite”相关记录39条 . 查询时间(0.065 秒)
Patch behaviour and predictability properties of modelled finite-amplitude sand ridges on the inner shelf
Patch behaviour predictability properties modelled finite-amplitude sand ridges inner shelf
2009/11/2
The long-term evolution of shoreface-connected sand ridges is investigated with a nonlinear spectral model which governs the dynamics of waves, currents, sediment transport and the bed level on the in...
Baroclinic Instability over a Slope. Part II：Finite-Amplitude Theory
Baroclinic Instability Finite-Amplitude Theory
2009/3/24
Baroclinic instability of a circular current is modified by the presence of a unidirectional bottom slope. An analytical theory is developed for the slightly unstable flow regime over a weak slope. Th...
Symmetric Finite-Amplitude Rotational Water Waves
symmetric periodic water waves Water Waves Symmetric Finite-Amplitude Rotational
2009/3/7
Two forms of a tw0-dimensional streamfunction solution for symmetric periodic water waves on a fluid with a vertical distribution of vorticity are presented. The magnitude of the vorticity varies line...
Finite-Amplitude Baroclinic Disturbances in Downstream Varying Currents
Finite-Amplitude Baroclinic Disturbances Downstream Varying Currents
2009/3/7
The finite-amplitude dynamics of baroclinic disturbances in currents whose cross-stream structure varies in the downstream direction is investigated.
It is first shown under what circumstances downst...
Irregular Grid Finite-Difference Techniques：Simulations of Oscillations in Shallow Circular Basins
Irregular Grid Finite-Difference Techniques Oscillations Shallow Circular Basins
2009/3/7
Finite-difference techniques for irregular computational grids are presented. Successful simulations of transient normal mode oscillations in shallow circular basins, where analytic solutions are know...
Comparison of Finite-Element and Finite-Difference Schemes. Part II：Two-Dimensional Gravity Wave Motion
Finite-Element Finite-Difference Schemes Two-Dimensional Gravity Wave Motion
2009/2/23
Irregular grid finite-difference techniques lead to equations similar to those obtained using finite-element techniques. The simpler finite-difference equations offer the advantage of greater computat...
Comparison of Finite-Element and Finite-Difference Schemes. Part I：One-Dimensional Gravity Wave Motion
Finite-Element One-Dimensional Gravity Wave Motion Finite-Difference Schemes
2009/2/23
The finite-element scheme requires more computational expense because it is time-implicit and because it requires a smaller time step than the finite-difference scheme. Simulations of normal mode osci...
Normal Modes of the World Ocean. Part I. Design of a Finite-Element Barotropic Model
Normal Modes World Ocean Finite-Element Barotropic Model
2009/2/23
The linearized primitive equations for a barotropic world ocean are discretized by means of first-order, piecewise-linear finite elements. Surface elevation and Stokes/Helmholtz velocity potentials ar...
Interaction of Tsunamis with the Hawaiian Islands Calculated by a Finite-Element Numerical Model
Tsunamis Hawaiian Islands Finite-Element Numerical Model
2009/2/23
A finite-element numerical model is used to determine the interaction of tsunamis with the Hawaiian Islands. The model employs a finite-element grid which telescopes from a large cell size in the deep...
A Finite-Element Solution Procedure for the Interpolation of Current Data in Complex Regions
Finite-Element Solution Complex Regions Current Data
2009/2/19
A finite-element solution technique is introduced to develop current patterns subject to geostrophic and Ekman dynamics for an irregular continental shelf region. The interpolation bases set of functi...
An Instability of Packets of Short Gravity Waves in Waters of Finite Depth
Short Gravity Waves Finite Depth
2009/2/13
We consider the stability of a solitary wave packet of short gravity waves propagating in waters of moderate depth. It is shown that such wave packets are unstable to long transverse disturbances. The...
Numerical Simulation of the 29 November 1975 Island of Hawaii Tsunami by the Finite-Element Method
Numerical Simulation Finite-Element Method Hawaii Tsunami
2009/2/13
The finite-element method is applied to study the transient response of a locally generated tsunami. The model time-steps the linearized shallow-water wave equation over a variable mesh of triangular ...
On the Effects of Finite Depth on Wind-Wave Spectra：1. A Comparison with Deep-Water Equilibrium-Range Slope and Other Spectral Parameters
Wind-Wave Spectra Deep-Water
2009/2/7
Spectral parameters calculated from wind-wave measurements in a finite-depth restricted-fetch estuary are compared with similar deep-water parameters. The equilibrium range of these finite-depth spect...
The Free Kelvin Wave in Finite-Difference Numerical Models
Free Kelvin Wave Finite-Difference Numerical Models
2009/2/6
The effects of viscosity and finite- differencing on free Kelvin waves in numerical models (which employ the Arakawa B- or C-grid difference schemes) are investigated using the f-plane shallow-water e...
Double-Diffusive Interleaving. Part II：Finite Amplitude, Steady State Interleaving
Double-Diffusive Interleaving Finite Amplitude Steady State Interleaving
2009/1/16
The exponentially growing solutions of the linear stability analysis of double-diffusive interleaving are allowed to grow to finite amplitude. At this stage the double-diffusive fluxes across the intr...