Experimental Study Of Three Dimensional Turbulent Jet Solid Boundary Interaction

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Experimental Study Of Three Dimensional Turbulent Jet Solid Boundary Interaction

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Author : Christos D. Tsitouras
language : en
Publisher:
Release Date : 1987

Experimental Study Of Three Dimensional Turbulent Jet Solid Boundary Interaction written by Christos D. Tsitouras and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Air jets categories.

An Experimental Study In Three Dimensional Turbulent Boundary Layers On A Flat Plate With Parallel Flow

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Author : Milton George Wille
language : en
Publisher:
Release Date : 1964

An Experimental Study In Three Dimensional Turbulent Boundary Layers On A Flat Plate With Parallel Flow written by Milton George Wille and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Aerodynamics categories.

Experimental Study Of Submerged Turbulent Twin Jets Interacting With A Free Surface And A Solid Wall

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Author : Ebenezer Essel
language : en
Publisher:
Release Date : 2018

Experimental Study Of Submerged Turbulent Twin Jets Interacting With A Free Surface And A Solid Wall written by Ebenezer Essel and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.

This thesis presents an experimental investigation of the effects of offset height ratio and boundary condition (free surface and solid wall) on the turbulence characteristics of submerged twin jets issuing from two parallel round nozzles. A particle image velocimetry (PIV) technique was used to conduct two sets of experiments. The first set of experiments focused on twin surface jets at Reynolds number, Re = 4400, separation ratio (G/d = 2.3) and offset heights, 1d, 2d, 3d and 4d from the free surface. The second set of experiments, which was designed based on the main findings of the previous experiment, examined the effects of free surface and wall on the turbulence structure of the twin jets. These experiments were performed at Re = 5000, G/d = 2 and offset heights, 1d, 2d and 4d from the free surface or wall. For the surface jets, the mean velocity and turbulence intensities at the free surface rapidly increased beyond the attachment point by amounts that increases with decreasing offset ratio. Further downstream, the surface transverse turbulence intensities decayed to negligible values while the streamwise turbulence intensities were persistent because of the energy redistribution from the transverse Reynolds normal stress to the tangential (streamwise and spanwise) Reynolds stresses. For both boundary conditions, the attachment length, Reynolds stresses and the spatial extents of the large-scale structures increased with increasing offset ratio. The transition of the twin jets to a single jet was more rapid as offset ratio increases due to the enhanced entrainment and mixing for larger offset ratios. The evolution of the jet farther away from the free surface or wall behaved like a free jet, but the decay rate of the jet interacting with each boundary was substantially reduced in the far field due to confinement effects. The difference between the effects of free surface and wall on the mean velocity, Reynolds stresses and triple velocity correlations were confined to the immediate vicinity of each boundary. The interaction between the large-scale structures and the boundaries were also investigated using various multi-point statistical techniques such as discrete wavelet transform, linear stochastic estimation, swirling strength, joint probability density function and two-point velocity correlations. The results showed that, the wall considerably reduced the spatial coherence of the structures embodied in the transverse auto-correlations compared to those near the free surface.

Experimental Studies In Three Dimensional Turbulent Boundary Layers

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Author : J. P. Johnston
language : en
Publisher:
Release Date : 1976

Experimental Studies In Three Dimensional Turbulent Boundary Layers written by J. P. Johnston and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Boundary layer categories.

The various methods for measurement of the six components of the turbulence stress tensor are reviewed, and some of the data on the turbulent shear stress vector are presented to demonstrate the validity of current ideas for.

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.

An Experimental Study Of The Development Of A Three Dimensional Turbulent Boundary Layer Under Rapidly Changing Rate Of Strain

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Author : Luc R. Bissonnette
language : en
Publisher:
Release Date : 1987

An Experimental Study Of The Development Of A Three Dimensional Turbulent Boundary Layer Under Rapidly Changing Rate Of Strain written by Luc R. Bissonnette and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with categories.

An Experimental Study Of A Three Dimensional Pressure Driven Turbulent Boundary Layer

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Author : Semih Mehmet Olcmen
language : en
Publisher:
Release Date : 1990

An Experimental Study Of A Three Dimensional Pressure Driven Turbulent Boundary Layer written by Semih Mehmet Olcmen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Turbulent boundary layer categories.

Experimental Study Of Three Dimensional Turbulent Offset Jets And Wall Jets

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Author : Martin Agelin-Chaab
language : en
Publisher:
Release Date : 2011

Experimental Study Of Three Dimensional Turbulent Offset Jets And Wall Jets written by Martin Agelin-Chaab and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.

Turbulence kinetic energy -- particle image velocimetry -- proper orthogonal decomposition -- two-point velocity correlations -- triple velocity products -- harpin vortex -- turbulenc production.

Nbs Special Publication

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Author :
language : en
Publisher:
Release Date : 1978

Nbs Special Publication written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Weights and measures categories.

Applied Mechanics Reviews

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Author :
language : en
Publisher:
Release Date : 1948

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 1948 with Mechanics, Applied categories.