internal wave


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internal wave

[in′tərn·əl ′wāv]
(fluid mechanics)
A wave motion of a stably stratified fluid in which the maximum vertical motion takes place below the surface of the fluid.
References in periodicals archive ?
Zeroing in on this energy transfer, Alam used computer simulations to transform a surface wave into internal wave as it approaches an object - meaning that the wave will pass beneath the object rather than crashing into it.
According to Livingstone, the most common trigger of overturning in other lakes is wind stress: Winds first pile water on one side of the lake, then stop blowing, releasing the water like "a bowl of soup on a cafeteria tray" and creating an internal wave that can precipitate an overturn.
And at the spot where these crescent waves, began, they found a standing, or stationary, internal wave spanning the western end of the channel in a northsouth direction.
The images were produced by radar on the TerraSAR-X satellite--the first radar to calculate internal wave velocities directly during a sole overpass.
Dynamic instabilities driven by shear in the oceanic internal wave field account for most mixing and turbulent vertical fluxes in the stratified ocean away from stress boundaries (Munk and Wunsch 1998).
Internal waves and turbulence in the upper 150 m were measured by the swarm of EM-APEX floats in both the weak- and moderate-straining case studies, for which the WKB-scaled internal wave energy was ~0.
I am currently collaborating with Alberto Scotti, who studies fluid dynamics at the University of North Carolina, to investigate a rare type of internal wave in the ocean called a "wave of elevation.
In confined fluid domains, successive reflections may lead to formation of a closed trajectory, an internal wave attractor.
They studied the wave dynamics in the tank, using water stratified by layers of different salt content to reproduce internal wave movement among different ocean layers--deep, colder, saltier water and warmer, less salty water closer to the surface.
The instruments can make such fine-scale observations of current velocities that scientists will be able to detect internal wave motions, as well as other flows that occur only infrequently, They will also be able to detect subtle variations in eddies--smaller-scale, episodically occurring currents that move contrary to main currents.
The figures show the passage of an internal wave as photographed from FLIP.
With our complete suite of fine-structure and microstructure variables, we have shown that certain relationships hold between the energy of the internal wave field and the intensity of small-scale turbulence.