Experimental study of near-bottom turbulence generated by internal waves

1990 ◽  
Vol 1 (4) ◽  
pp. 317-320
Author(s):  
A. N. Rutenko
Keyword(s):  
Experimental Study ◽  
Internal Waves

Experimental study on internal waves in a stratified shear flow

1981 ◽  
Vol 37 (4) ◽  
pp. 179-192 ◽  
Author(s):  
Tadashi Andow ◽  
Kimio Hanawa ◽  
Yoshiaki Toba
Keyword(s):  
Experimental Study ◽  
Shear Flow ◽  
Internal Waves ◽  
Stratified Shear Flow

Experimental study of internal waves over a slope

1974 ◽  
Vol 66 (2) ◽  
pp. 223-239 ◽  
Author(s):  
David Cacchione ◽  
Carl Wunsch
Keyword(s):  
Boundary Layer ◽  
Experimental Study ◽  
Internal Waves ◽  
Spatial Dependence ◽  
Bottom Boundary Layer ◽  
Bottom Slope ◽  
Wave Characteristic ◽  
Bottom Boundary ◽  
The Waves ◽  
Wave Breakdown

Internal waves of the fundamental mode propagating into a shoaling region have been studied experimentally in a continuously stratified fluid. The waves divide into three classes depending upon the ratio of the bottom slope γ to the wave-characteristic slopec. For γ/c< 1, the amplitude and wavenumber changes of the waves over the slope are in reasonable accord with a simple inviscid linear theory, prior to wave breakdown near the intersection of the slope and surface. Considerable mixing occurs in this corner region. When γ/c= 1, a striking instability of the bottom boundary layer is observed and the waves are heavily damped. When γ/c> 1, the waves are inhomogeneous and have complex spatial dependence.

Experimental Study of Ship Internal Waves—The Supersonic Case

1993 ◽  
Vol 115 (1) ◽  
pp. 16-22 ◽  
Author(s):  
H. Ma ◽  
M. P. Tulin
Keyword(s):  
Experimental Study ◽  
Internal Wave ◽  
Wave Field ◽  
Experimental Method ◽  
Internal Waves ◽  
Measured Data ◽  
Density Distributions ◽  
Wave Patterns ◽  
Wave Profiles ◽  
Theoretical Results

Internal waves produced by a ship traveling faster than the fastest internal waves (supersonic case) were investigated experimentally in our laboratory in a wide tank using averaging conductivity wave gages developed for this investigation. The wave gage is similar to the conductivity probe, but has space-averaging electrodes. An array of seven such gages was used in a wave tank with dimensions 12 ft length, 8 ft width, 2 ft depth. The water in the tank was stratified with salt to obtain desired density distributions. A spheroid, split vertically, was towed against and along a sidewall to simulate a moving ship. Simultaneous wave profiles at various distances normal to the track of the ship were obtained for different Froude numbers and density distributions. The internal wave patterns were calculated from the measured data and compared with theoretical results. The amplitude on the first crest of the internal wave field is also plotted against the distance from the ship, and a limited comparison with theory is made. The experimental method developed for this study is sensitive, simple and reliable. It may serve to obtain a data base for ship-generated internal waves under a variety of conditions.

Experimental study of long nonlinear internal waves in rotating fluid

1994 ◽  
Vol 12 (2) ◽  
pp. 254
Author(s):  
Dominique Renouard ◽  
Jean-Pierre Germain
Keyword(s):  
Experimental Study ◽  
Internal Waves ◽  
Rotating Fluid ◽  
Nonlinear Internal Waves

Experimental study of the motion of a submerged body under the influence of internal waves

1995 ◽  
Vol 30 (2) ◽  
pp. 326-330 ◽  
Author(s):  
V. I. Bukreev ◽  
A. V. Gusev ◽  
E. V. Ermanyuk
Keyword(s):  
Experimental Study ◽  
Internal Waves ◽  
Submerged Body

Non-linear internal waves in shallow water. A theoretical and experimental study

Tellus ◽  
1980 ◽  
Vol 32 (5) ◽  
pp. 488-504
Author(s):  
M. A. Helal ◽  
J. M. Molines
Keyword(s):  
Experimental Study ◽  
Shallow Water ◽  
Internal Waves ◽  
Non Linear

scholarly journals The magic carpet: an arbitrary spectrum wave maker for internal waves

2019 ◽  
Vol 60 (11) ◽  
Author(s):  
Thomas E. Dobra ◽  
Andrew G. W. Lawrie ◽  
Stuart B. Dalziel
Keyword(s):  
Experimental Study ◽  
Theoretical Model ◽  
Internal Waves ◽  
Arbitrary Size ◽  
Size And Shape ◽  
Flexible Surface ◽  
Propagating Waves ◽  
Computer Controlled ◽  
Wave Maker ◽  
Linear And Nonlinear

Abstract We present a novel apparatus for generating internal waves of arbitrary size and shape, including both phase-locked and propagating waves. It is an actively driven, flexible “magic carpet” in the base of a tank. Our wave maker is computer-controlled to enable easy configuration. The actuation of a smooth, flexible surface produces clean waveforms with a predictable spectrum, for which we derive a theoretical model. We demonstrate the versatility of our wave maker through an experimental study of linear and nonlinear, isolated, and combined internal waves, including some that are sufficiently nonlinear to break remote from their source. Graphic abstract

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