An Experimental Investigation Of A Turbulent Jet In A Cross Flow

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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.

An Experimental Investigation Of A Turbulent Jet In A Cross Flow

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Author : David Kenneth Mosher
language : en
Publisher:
Release Date : 1970

An Experimental Investigation Of A Turbulent Jet In A Cross Flow written by David Kenneth Mosher and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Jets categories.

The interference phenomenon occurring when a subsonic turbulent jet exhausts normally from a large flat plate into a low speed crossflow was experimentally investigated in the Georgia Tech nine foot wind tunnel. Static pressures were measured on the surface around the jet. In the region off the surface, including the jet plume, wake and surrounding areas, the average total and static pressures and the average velocity magnitudes and directions were determined. Three jet exit configurations were studied, one circular and two slot-shaped with width to length ratios of 0.3 and 3.4. All have the same exit area. The effective jet to cross-flow velocity ratio was varied, for each of the exit configurations, over the range 4.0 to 12.0. Analysis of the data indicates that the pressure distributions induced on the surface are a combined result of the jet's blocking and entraining effects on the cross flow with entrainment becoming the more dominant of the two as the effective velocity ratio is increased. This relative dominance brings about an attenuation of total interference lift loss (when computed as a fraction of gross thrust) primarily by causing a rise in the low pressures in the wake region as the effective velocity ratio increases. When the effective velocity ratio is held fixed, the total interference lift loss increases with increasing width to length ratio of the jet exit. (Author).

An Analytical And Experimental Investigation Of Turbulent Jet Impingement In A Confined Cross Flow

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Author : G.D. Catalano
language : en
Publisher:
Release Date : 1989

An Analytical And Experimental Investigation Of Turbulent Jet Impingement In A Confined Cross Flow written by G.D. Catalano and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with categories.

An Experimental And Numerical Investigation Of A Turbulent Round Jet Issuing Into An Unsteady Crossflow

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Author : 夏麗萍
language : en
Publisher: Open Dissertation Press
Release Date : 2017-01-26

An Experimental And Numerical Investigation Of A Turbulent Round Jet Issuing Into An Unsteady Crossflow written by 夏麗萍 and has been published by Open Dissertation Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-01-26 with categories.

This dissertation, "An Experimental and Numerical Investigation of a Turbulent Round Jet Issuing Into an Unsteady Crossflow" by 夏麗萍, Liping, Xia, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. DOI: 10.5353/th_b3123789 Subjects: Unsteady flow (Aerodynamics) Jets - Fluid dynamics

An Experimental And Computational Investigation Of Turbulent Jet Impingement In A Confined Cross Flow

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Author : Keun Sun Chang
language : en
Publisher:
Release Date : 1989

An Experimental And Computational Investigation Of Turbulent Jet Impingement In A Confined Cross Flow written by Keun Sun Chang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Jets categories.

The Entrainment And Mixing Of A Round Buoyant Turbulent Jet In Cross Flow

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Author : David Charles Thoman (Jr)
language : en
Publisher:
Release Date : 1991

The Entrainment And Mixing Of A Round Buoyant Turbulent Jet In Cross Flow written by David Charles Thoman (Jr) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.

This thesis summaries the results of an experimental investigation of the near-field behavior and physics of the round buoyant turbulent jet in crossflow. In particular, the study centers on the physics associated with entrainment and mixing phenomena of the jet with the goal of better understanding the trends of trajectory and dilution behavior. The experiments involved a downward discharge of cold nitrogen gas (at about $-$85$spcirc$C) from a cylindrical structure placed in a wind tunnel of horizontally flowing ambient air. The jet was mapped using thermocouple measurements. For the purpose of studying jet/crossflow and jet/wake interactions, fog-oil smoke was used to mark parcels of fluid in the crossflow upstream of the jet and in the wake flow downstream of the discharge structure. Time-averaged, smoke concentrations were gathered through an aspirated sampling probe in conjunction with a calibrated, optical aerosol monitor. Smoke distributions were also photographed. Experiments were performed for four different values for the crossflow-to-exit velocity ratio k, namely, k = 0.7, 1.3, 2.1, and 3.5. The results of the experiments yield a comprehensive picture of the near-field flow patterns, flow interactions, and flow-transport physics for a buoyant jet in crossflow. Key, phenomenologically distinct zones of flow which comprise the near-exit structure of the jet are identified. The flow patterns within these zones, and thus the structure of the near-exit jet, are found to be extremely dependent on the value of the velocity ratio. Flow interactions in this region establish flow patterns which have a pronounced influence on the downstream development of the jet. A method is developed to fully document the trajectory and dilution behavior of the jet with the key parameters of influence. Trajectory and dilution are found to correlate with two parameters, namely, the velocity ratio and the density-difference ratio. Finally, unsteady, large-scale mixing motions within the near-exit flow zones are documented. Distinct modes of large-scale mixing which are responsible for the rapid and extensive dispersion observed in the jet are revealed by this study.

An Experimental And Numerical Investigation Of A Turbulent Round Jet Issuing Into An Unsteady Crossflow

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Author : Liping Xia
language : en
Publisher:
Release Date : 1998

An Experimental And Numerical Investigation Of A Turbulent Round Jet Issuing Into An Unsteady Crossflow written by Liping Xia and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Jets categories.

An Experimental Investigation Of A Turbulent Incompressible Three Dimensional Wall Jet

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Author : Hermann Viets
language : en
Publisher:
Release Date : 1966

An Experimental Investigation Of A Turbulent Incompressible Three Dimensional Wall Jet written by Hermann Viets and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with Turbulent boundary layer categories.

This paper presents an experimental investigation of the bulk properties of a turbulent, three-dimensional, incompressible air wall jet issuing into a quiescent air ambient from a rectangular orifice parallel to and at the surface of a flat plate. Results of this study indicate the characteristic features of such a dissipative flow. The behavior of a three-dimensional flow field of this nature has associated with it three distinct regions in the axis velocity decay with an approach to the flow field of a radial wall jet far downstream of the jet exit and on the centerline of the flow. Spreading rates in the various cross planes display a dependence upon the aforementioned characteristic regions. (Author).

An Experimental Investigation Of The Effects Of A Turbulent Co Flowing Flow On The Development Of A Jet

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Author : S. S. I. Rizvi
language : en
Publisher:
Release Date : 1991

An Experimental Investigation Of The Effects Of A Turbulent Co Flowing Flow On The Development Of A Jet written by S. S. I. Rizvi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.

An Experimental Investigation Of A Two Dimensional Turbulent Jet Flow Over A Rotating Cylinder

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Author : Helmut Keil
language : en
Publisher:
Release Date : 1968

An Experimental Investigation Of A Two Dimensional Turbulent Jet Flow Over A Rotating Cylinder written by Helmut Keil and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with categories.