Results 221 to 230 of about 14,136 (261)
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Nonlinear Internal Waves in a Fjord
1978Abstract A pilot study in Knight Inlet, British Columbia has yielded measurements of large amplitude, nonlinear internal waves in the strongly stratified surface layer. A train of several waves with amplitudes exceeding 10 meters and periods of a few minutes, passed the vessel on each flood tide.
David Farmer, J. Dungan Smith
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Nonlinear Internal Solitary Wave on a Pycnocline
Journal of Offshore Mechanics and Arctic Engineering, 2002This paper describes the theory of nonlinear internal-solitary waves of the type observed in coastal seas. It also describes a numerical solution of an initial-value problem that leads to an internal solitary-like wave. The equations solved numerically are the Navier-Stokes, diffusion, and continuity equations.
Daniel T. Valentine, Radica Sipcic
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Nonlinear dispersion of long internal waves
Fluid Dynamics, 1988zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kshevetskij, S. P., Leble, S. B.
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Amplitude Bounds for Nonlinear Internal Waves
Volume 3: Materials Technology; Ocean Engineering; Polar and Arctic Sciences and Technology; Workshops, 2003Amplitude bounds imposed by the conservation of mass, momentum and energy for internal gravity waves are considered. We discuss the theoretical schemes intended for a description of permanent waves just up to the broadening limit. Analytical methods which allow to determine the critical amplitude values for the current with a given density profile are ...
Nikolai I. Makarenko, Janna L. Maltseva
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Nonlinear internal waves in a large lake
Doklady Earth Sciences, 2011Comprehensive experiments on the large stratified Lake Onega have been implemented for the first time. Generation and destruction of nonlinear internal waves under different meteorological conditions have been studied.
N. N. Filatov +3 more
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Internal waves in a two‐layer system using fully nonlinear internal‐wave equations
International Journal for Numerical Methods in Fluids, 2009AbstractIn order to understand the nonlinear effect in a two‐layer system, fully nonlinear strongly dispersive internal‐wave equations, based on a variational principle, were proposed in this study. A simple iteration method was used to solve the internal‐wave equations in order to solve the equations stably. The applicability of the proposed numerical
Nakayama, K., Kakinuma, T.
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Nonlinear Internal Damping of Wave Equations with Variable Coefficients
Acta Mathematica Sinica, English Series, 2004The authors consider the boundary stabilization problem of wave equations with variable coefficients in a bounded domain \(\Omega \subset \mathbb{R}^n\) with a boundary \(\Gamma\) posessing some suitable smoothness conditions: \[ u_{tt}-\sum_{i,j=1}^n \frac{\partial u}{\partial x_i} \left( a_{ij}(x) \frac{\partial u}{\partial x_j}\right)+\chi_G(x) f ...
Feng, Shaoji, Feng, Dexing
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Selection Rules for the Nonlinear Interaction of Internal Gravity Waves
Physical Review Letters, 2009Two intersecting beams of internal gravity waves will generically create two wave packets by nonlinear interaction. The frequency of one packet will be the sum and that of the other packet will be the difference of the frequencies of the intersecting beams. In principle, each packet should form an "X" pattern, or "St. Andrew's cross" consisting of four
Chung-Hsiang, Jiang, Philip S, Marcus
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NONLINEAR ASYMPTOTICS FOR HYPERBOLIC INTERNAL WAVES OF SMALL WIDTH
Journal of Hyperbolic Differential Equations, 2006Semilinear hyperbolic problems with source terms piecewise smooth and discontinuous across characteristic surfaces yield similarly piecewise smooth solutions. If the discontinuous source is replaced with a smooth transition layer, the discontinuity of the solution is replaced by a smooth internal layer.
Gues, Olivier, Rauch, Jeffrey
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Numerical Simulation of a Weakly Nonlinear Model for Internal Waves
Communications in Computational Physics, 2012Summary: Internal waves arise in a wide array of oceanographic problems of both theoretical and engineering interest. In this contribution we present a new model, valid in the weakly nonlinear regime, for the propagation of disturbances along the interface between two ideal fluid layers of infinite extent and different densities.
Gregory, Robyn Canning +1 more
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