Experiments on Turbulent Wakes in a Stable Density-stratified Environment PDF Download

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Experiments on Turbulent Wakes in a Stable Density-stratified Environment

Experiments on Turbulent Wakes in a Stable Density-stratified Environment PDF Author: Walter P. M. van de Watering
Publisher:
ISBN:
Category : Turbulence
Languages : en
Pages : 74

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Book Description
In a laboratory experiment, turbulent mixed regions were generated in a linearly density-stratified fluid and their behavior was studied. Such regions may occur in nature in the atmosphere and in the ocean. Particularly during their early history, the shape of such regions is influenced by the interacting effects of turbulence and buoyancy, culminating in the occurrence of a maximum thickness and subsequent vertical collapse. A Richardson number (equivalent to the ratio of the characteristic turbulence time and the Vaisala period) was found satisfactorily to correlate the data obtained, together with those previously obtained by other investigators with self-propelled bodies. An estimate is made of the degree of mixing that takes place inside a turbulent mixed region during its growth in stably-stratified surroundings: the effectiveness of this mixing determines the ultimate thickness to which the mixing region collapses. (Author).