Energy propagation in nonlinear internal wave ducts from radiative transport theory.

2010 ◽  
Vol 128 (4) ◽  
pp. 2335-2335
Author(s):  
Kara G. McMahon ◽  
James F. Lynch ◽  
Ying‐Tsong Lin ◽  
William L. Siegmann
Keyword(s):  
Internal Wave ◽  
Transport Theory ◽  
Radiative Transport ◽  
Energy Propagation ◽  
Nonlinear Internal Wave

Nonlinear internal wave parameter influences on energy propagation using radiative transport theory.

2011 ◽  
Vol 129 (4) ◽  
pp. 2458-2458
Author(s):  
Kara G. McMahon ◽  
James F. Lynch ◽  
Ying‐Tsong Lin ◽  
Ning Xiang ◽  
William L. Siegmann
Keyword(s):  
Internal Wave ◽  
Transport Theory ◽  
Wave Parameter ◽  
Radiative Transport ◽  
Energy Propagation ◽  
Nonlinear Internal Wave

A multi-layer model for nonlinear internal wave propagation in shallow water

2012 ◽  
Vol 695 ◽  
pp. 341-365 ◽  
Author(s):  
Philip L.-F. Liu ◽  
Xiaoming Wang
Keyword(s):  
Wave Propagation ◽  
Internal Wave ◽  
Shallow Water ◽  
Internal Waves ◽  
Bottom Topography ◽  
Laboratory Data ◽  
Constant Density ◽  
Layer Model ◽  
Fluid System ◽  
Nonlinear Internal Wave

AbstractIn this paper, a multi-layer model is developed for the purpose of studying nonlinear internal wave propagation in shallow water. The methodology employed in constructing the multi-layer model is similar to that used in deriving Boussinesq-type equations for surface gravity waves. It can also be viewed as an extension of the two-layer model developed by Choi & Camassa. The multi-layer model approximates the continuous density stratification by an $N$-layer fluid system in which a constant density is assumed in each layer. This allows the model to investigate higher-mode internal waves. Furthermore, the model is capable of simulating large-amplitude internal waves up to the breaking point. However, the model is limited by the assumption that the total water depth is shallow in comparison with the wavelength of interest. Furthermore, the vertical vorticity must vanish, while the horizontal vorticity components are weak. Numerical examples for strongly nonlinear waves are compared with laboratory data and other numerical studies in a two-layer fluid system. Good agreement is observed. The generation and propagation of mode-1 and mode-2 internal waves and their interactions with bottom topography are also investigated.

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