Theoretical And Experimental Investigations On The Mixing Of Isoenergetic Confined Co Axial Jets
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Theoretical And Experimental Investigations On The Mixing Of Isoenergetic Confined Co Axial Jets
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Author : W. Tabakoff
language : en
Publisher:
Release Date : 1970
Theoretical And Experimental Investigations On The Mixing Of Isoenergetic Confined Co Axial Jets written by W. Tabakoff and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with categories.
A survey of experimental results for turbulent mixing between two compressible streams in a constant area duct is presented. The experimental results are for area ratios 3 and 7.16, for velocity ratios ranging from 0.4 to 2.8, and with velocity magnitudes varying from 200 ft/sec. to 950 ft/sec. A new constant of turbulence is recommended for the theoretical analysis of the confined jet mixing which uses the free jet mixing concepts. The regions in which this analysis could be used are delineated. (Author).
Research On Mixing Of Coaxial Streams
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Author : Andrew A. Fejer
language : en
Publisher:
Release Date : 1967
Research On Mixing Of Coaxial Streams written by Andrew A. Fejer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Jets categories.
The report presents the results of experimental and analytical investigations of the confined coaxial mixing of isoenergetic air streams. Both uniflowing and counterflowing secondary air streams are considered. Laminar and turbulent uniflow mixing are treated analytically. The results of experimental investigations of turbulent mixing are used to calculate the radial as well as the axial variations of eddy viscosity and the turbulent diffusion coefficient up to 25 jet diameters downstream of jet orifice. New expressions are developed to yield reliable values in regions of mixing where existing expressions become indeterminate. Special consideration is given to the case where the two streams have equal velocity. The experimental investigation of turbulent counterflow mixing shows that a toroidal shaped vortex is set up at the jet interface which gives rise to depressed static pressures. Over the range of parameters investigated, entrainment of fluid from the inner jet into the external stream takes place downstream of the vortex. (Author).
An Experimental Investigation Of The Mixing Of Compressible Air Jets In A Coaxial Configuration
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Author : James M. Eggers
language : en
Publisher:
Release Date : 1969
An Experimental Investigation Of The Mixing Of Compressible Air Jets In A Coaxial Configuration written by James M. Eggers and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Airplanes categories.
Turbulent mixing of compressible air in supersonic and subsonic coaxial jet flows.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1971
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 1971 with Aeronautics categories.
An Experimental And Theoretical Investigation Of Confined Two Stream Variable Density Turbulent Jet Mixing With Recirculation
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Author : Roy James Schulz
language : en
Publisher:
Release Date : 1976
An Experimental And Theoretical Investigation Of Confined Two Stream Variable Density Turbulent Jet Mixing With Recirculation written by Roy James Schulz and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with categories.
An Investigation Of Ducted Two Stream Variable Density Turbulent Jet Mixing With Recirculation
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Author : Roy J. Schulz
language : en
Publisher:
Release Date : 1977
An Investigation Of Ducted Two Stream Variable Density Turbulent Jet Mixing With Recirculation written by Roy J. Schulz and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Jets categories.
An investigation was conducted of two-stream, variable-density, turbulent jet mixing with recirculation confined within an axisymmetric duct that simulated a combustor configuration. The recirculating flow fields in the combustor simulator were the result of coaxial jet mixing between a central, primary air stream with a velocity of about 650 ft/sec and an annular secondary stream of hydrogen with velocities of 13, 23, or 48 ft/sec, depending on the desired test conditions. Experimental measurements are presented of radial distributions of time-averaged axial velocity and hydrogen mass fraction, axial distributions of time-averaged static pressure on the duct wall, axial velocity on the duct centerline, and hydrogen mass fraction on the duct wall and on the duct centerline. A theoretical study of the experimental flows was also conducted using a finite difference numerical solution technique for the calculation of viscous, recirculating flows. Comparison of theory and experiment shows that the predictive technique and the turbulence transport model require further development before accurate prediction of recirculating turbulent flows can be realized.
Analytical And Experimental Investigations Of Incompressible And Compressible Mixing Of Streams And Jets
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Author : Illinois. University. Dept. of Aeronautical Engineering
language : en
Publisher:
Release Date : 1955
Analytical And Experimental Investigations Of Incompressible And Compressible Mixing Of Streams And Jets written by Illinois. University. Dept. of Aeronautical Engineering and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1955 with Laminar flow categories.
Research In Progress
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Author :
language : en
Publisher:
Release Date : 1970
Research In Progress written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Military research categories.
Journal Of Aircraft
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Author :
language : en
Publisher:
Release Date : 1972
Journal Of Aircraft written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Aeronautics categories.
Study Of Non Isoenergetic Turbulent Jet Mixing In A Constant Area Duct
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Author : J. H. Blasenak
language : en
Publisher:
Release Date : 1976
Study Of Non Isoenergetic Turbulent Jet Mixing In A Constant Area Duct written by J. H. Blasenak and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with categories.
A study of non-isoenergetic turbulent jet mixing between two streams has been conducted. Using a previously derived theoretical analysis for ducted mixing, an experimental investigation was performed to verify this theory and to determine the non-isoenergetic turbulent jet mixing characteristics in a constant area duct. Temperature profiles were measured at several axial locations in the duct for both a concentric and an eccentric configuration. It was determined that the oretical and experimental temperature profiles agreed fairly well for both cases, although the concentric case showed better agreement than the eccentric case. It was also determined that a new constant of turbulence in the initial region was needed for non-isoenergetic mixing, mixing is generally more rapid than the theory predicted, the initial temperature difference between the two streams did not have much effect on the rate of mixing and a higher area ratio produced better agreement between the theory and the experimental data. It was concluded that the theory was good for a fairly simplified analysis. (Author).