Theoretical And Experimental Investigations Of Turbulent Jet Formation In Planetary Fluid Dynamics

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Theoretical And Experimental Investigations Of Turbulent Jet Formation In Planetary Fluid Dynamics

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Author : Robin D. Wordsworth
language : en
Publisher:
Release Date : 2008

Theoretical And Experimental Investigations Of Turbulent Jet Formation In Planetary Fluid Dynamics written by Robin D. Wordsworth and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.

Coupled Experimental And Theoretical Investigations Of Instability Chaos And Turbulence In An Axisymmetric Jet Flow

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Author : Thomas C. Corke
language : en
Publisher:
Release Date : 1988

Coupled Experimental And Theoretical Investigations Of Instability Chaos And Turbulence In An Axisymmetric Jet Flow written by Thomas C. Corke and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with categories.

The theoretical and experimental investigations on the instability, routes to chaos and transition to turbulence of an anisymmetric jet flow has been investigated. The first general task has involved the search for evidence of strange attractors in the unsteady dynamics of naturally (stochastically) and periodically excited jets. A special case of the periodically excited jets were ones having enhanced acoustic feedback. As part of this effort, substantial computer software was developed to analyse velocity time-series to determine attractor dimensions, Lyapunov exponents and topological entropy. Under conditions with strong feedback and without forcing, long highly sampled time-series were analyzed. Using independent measures of attractor dimension by a modified Grassberger-Procaccia algorithm and the singular decomposition method of Broomhead and King, the low-dimensional nature of the dynamics of the initial shear layer up to the point of pairing were confirmed. On the theoretical front, the first part of the work, now completed, dealt with the instability of thin inviscid circular shear layers.

A Theoretical And Experimental Investigation Of Turbulent Jet Interaction

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Author : Steven Brian Weeks
language : en
Publisher:
Release Date : 1969

A Theoretical And Experimental Investigation Of Turbulent Jet Interaction written by Steven Brian Weeks and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Mechanical engineering categories.

The interaction of two impinging plane turbulent jets was investigated for the purpose of understanding the performance of proportional fluid amplifiers and momentum-exchange devices. Velocity and turbulence profiles were measured across and at various distances along the combined jet axis through the use of a constant temperature hot-wire anemometer. Experimentally determined jet deflection angles were found to agree with those predicted in a previous work by the free-streamline theory. The results, which are presented in terms of normalized parameters, show that the jet interaction may be divided into three regions: mixing; transition; and fully developed. A vena-contracta effect was found to exist in the mixing region. A discussion of each of the three regions is presented in detail along with generalizations for similar geometries. (Author).

The Theory Of Turbulent Jets

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Author : G. N. Abramovich
language : en
Publisher: Mit Press
Release Date : 1963

The Theory Of Turbulent Jets written by G. N. Abramovich and has been published by Mit Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1963 with Technology & Engineering categories.

The author's first monograph on turbulent jets, in 1936, dealt solely with a free submerged jet. Since that time, the theory of the turbulent jet has been developed in many published works both in the USSR and abroad: it has been enriched with a large amount of experimental material and has been applied in many new fields of engineering. In the last 10 years very substantial progress has been made, and it has now become possible to go beyond the free submerged jet and to solve the problem of a jet in a stream of fluid, to take into account the interaction between the jet and solid walls, to ascertain the relationship between the contour of the jet and the ratio of its density to the density of the surrounding medium, and to establish the characteristic features of a supersonic jet. This monograph contains the results of further research by the author and his colleagues, as well as a critical reappraisal of the more important theoretical and experimental data published by other investigators. The first section deals with the theory of a turbulent jet of incompressible fluid. It gives a systematic analysis of numerous experimental data on velocity profiles, temperature, and the impurity concentration, as well as the outlines of the turbulent mixing lone. The second section sets forth the theory of turbulent gas jets, including strongly preheated and supersonic jets. The theory of free turbulence in a gas, suitable in principle for any degree of compressibility, is revised, and the equations are derived for motion and heat exchange in the boundary layer of a jet at very high temperature. The third section solves several problems of the spreading of jets in finite and semifinite space, and the fourth section describes various applications of the theory of jets, many of which are reported for the first time or have been significantly revised.

Recent Research Advances In The Fluid Mechanics Of Turbulent Jets And Plumes

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Author : P.A. Davies
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Recent Research Advances In The Fluid Mechanics Of Turbulent Jets And Plumes written by P.A. Davies and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.

Challenging problems involvrllg jet and plume phenomena are common to many areas of fundamental and applied scientific research, and an understanding of plume and jet behaviour is essential in many geophysical and industrial contexts. For example, in the field of meteorology, where pollutant dispersal takes place by means of atmospheric jets and plumes formed either naturally under conditions of convectively-driven flow in the atmospheric boundary layer, or anthropogenically by the release of pollutants from tall chimneys. In other fields of geophysics, buoyant plumes and jets are known to play important roles in oceanic mixing processes, both at the relatively large scale (as in deep water formation by convective sinking) and at the relatively small scale (as with plume formation beneath ice leads, for example). In the industrial context, the performances of many engineering systems are determined primarily by the behaviour of buoyant plumes and jets. For example, (i) in sea outfalls, where either sewage or thermal effluents are discharged into marine and/or freshwater environments, (ii) in solar ponds, where buoyant jets are released under density interfaces, (iii) in buildings, where thermally-generated plumes affect the air quality and ventilation properties of architectural environments, (iv) in rotating machinery where fluid jet~ are used for cooling purposes, and (v) in long road and rail tunnels, where safety and ventilation prcedures rely upon an understanding of the behaviour of buoyant jets. In many other engineering and oceanographic contexts, the properties of jets and plumes are of great importance.

An Experimental Investigation Of A Turbulent Jet In A Cross Flow

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Author :
language : en
Publisher:
Release Date : 1974

An Experimental Investigation Of A Turbulent Jet In A Cross Flow written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1974 with Jets categories.

Scientific And Technical Aerospace Reports

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Author :
language : en
Publisher:
Release Date : 1995

Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Aeronautics categories.

Hydraulic Research In The United States And Canada 1976

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Author : Pauline H. Gurewitz
language : en
Publisher:
Release Date : 1978

Hydraulic Research In The United States And Canada 1976 written by Pauline H. Gurewitz and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Hydraulic engineering categories.

Applied Mechanics Reviews

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Author :
language : en
Publisher:
Release Date : 1969

Applied Mechanics Reviews written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Mechanics, Applied categories.

Selected Water Resources Abstracts

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Author :
language : en
Publisher:
Release Date : 1971

Selected Water Resources Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Hydrology categories.