An Experimental Investigation of Turbulence in a Stratified Fluid PDF Download
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Author: George Arthur Seaver
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: George Arthur Seaver
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Robert R. Long
Publisher:
ISBN:
Category :
Languages : en
Pages : 45
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The report contains a description of reasearch closely connected to an experimental investigation of turbulent, stratified, shearing flow. The experiment is one of the simplest in which three basic properties of a turbulent flow - stratification, energy dissipation and shear - are present, and it is hoped that a good understanding of this experiment will lead to useful information about turbulent processes in the atmosphere and oceans and other density-stratified fluid systems. (Author).
Author: Clinton Gary Koop
Publisher:
ISBN:
Category : Hydrodynamics
Languages : en
Pages : 245
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The results of an experimental investigation of shear instability and turbulent mixing in a stratified fluid are presented. Two parallel streams of water, moving at different velocities and having different densities (salinities) are produced in an open channel. Dye and shadowgraph techniques are used to visualize the flow, and quantitative measurements of velocity and density are made with hot films and conductivity probes.
Author: Barry Lee Gilbert
Publisher:
ISBN:
Category : Fluid dynamics
Languages : en
Pages : 538
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Author: Rex Edward Britter
Publisher:
ISBN:
Category : Turbulence
Languages : en
Pages :
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Author: Chee Tiong Yap
Publisher:
ISBN:
Category :
Languages : en
Pages : 396
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Author: Kurt Harting Keller
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ISBN:
Category :
Languages : en
Pages : 296
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Author: Paul Frenzen
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ISBN:
Category : Atmospheric diffusion
Languages : en
Pages : 192
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An experimental investigation of turbulent diffusion in a towing channel is described. Measurements of consecutive displacements of tracer particles suspended within grid-produced fields of homogeneous turbulence were corrected for decay and used to compute Lagrangian autocorrelation functions. Results in the form of correlograms and a number of turbulence characteristics obtained under conditions of three different initial turbulence intensities (i.e., three grid Reynolds numbers) in fluid stratifications ranging from weak instability to strong stability are compared.
Author: Walter P. M. van de Watering
Publisher:
ISBN:
Category : Turbulence
Languages : en
Pages : 116
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The force of gravity causes a turbulent wake in a density-stratified fluid to eventually cease its vertical growth and then to collapse towards its horizontal midplane. In the present investigation this phenomenon was studied experimentally. The turbulent wake was created by means of a spiral paddle, agitated by a pendulum-type arrangement outside a transparent lucite tank. Data were obtained from tracings of the motion pictures taken by a 16 mm movie camera. Both the pendulum arrangement and the paddle diameter were varied to find the possible influence of the experimental conditions. It was observed that the initial rate of growth in the vertical direction is constant, depending primarily on the density gradient and the agitation mechanism (i.e. pendulum and paddle diameter). This initial rate of growth of the wake, the maximum vertical thickness of the wake, the time at which collapse begins and the turbulence intensity within the wake at that time, were all correlated with the Vaisala frequency, resulting in three important constants which seemed to be independent of the experimental conditions. (Author).
Author: Tommy De Dickey
Publisher:
ISBN:
Category : Diffusers
Languages : en
Pages : 270
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