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Author : Zahir Uddin Ahmed
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (959 download)
Download or read book An Experimental and Numerical Study of Surface Interactions in Turbulent Swirling Jets written by Zahir Uddin Ahmed and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael Wilson Bassey
Publisher :
ISBN 13 :
Total Pages : 762 pages
Book Rating : 4.:/5 (933 download)
Download or read book Experimental and Numerical Studies of Turbulent Swirling Jets in Ducted Streams written by Michael Wilson Bassey and published by . This book was released on 1975 with total page 762 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 704 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael S. Feyedelem
Publisher :
ISBN 13 :
Total Pages : 175 pages
Book Rating : 4.:/5 (64 download)
Download or read book Interaction of a Swirling Jet with a Free Surface written by Michael S. Feyedelem and published by . This book was released on 1996 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: The turbulent flow field of a swirling jet issuing from a nozzle, beneath and parallel to a free surface has been studied in as much detail as possible using a three-component laser Doppler velocimeter and flow visualization. The results have shown that the swirl leads to the faster spreading and quicker mixing of the jet. For strongly swirling jets (S = 0.522), the similiarity is not reached within ten diameters downstream. The results have also shown that both the acial and tangential velocity components decrease outward from the jet axis, naturall leading to centrifugal instabilities. This, in turn, leads to the creation of large scale coherent structures at the periphery of the jet, particularly when it is in the vicinity of the free surface. The turbulent shear stresses exhibit anisotropic behavior, the largest always being in the plane passing through the jet axis. The change of TKE with S is not monotonic. It is maximum for S - 0.265, smallest for S = 0.50, and has an intermediate value for S - 0.522. This is due to the occurrence of vortex breakdown and the resulting intensification of the turbulence within the jet prior to its exit from the nozzle.
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ISBN 13 :
Total Pages : 700 pages
Book Rating : 4.:/5 (26 download)
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1968 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 1314 pages
Book Rating : 4.F/5 ( download)
Download or read book Physics Briefs written by and published by . This book was released on 1989-07 with total page 1314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 1690 pages
Book Rating : 4.:/5 (31 download)
Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1991 with total page 1690 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 728 pages
Book Rating : 4.:/5 (891 download)
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1991 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael Staiano
Publisher :
ISBN 13 :
Total Pages : 138 pages
Book Rating : 4.:/5 (279 download)
Download or read book Experimental and Numerical Study of Two-dimensional Free and Impinging Turbulent Jets written by Michael Staiano and published by . This book was released on 1992 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 1032 pages
Book Rating : 4.F/5 ( download)
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : János Miklós Beér
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ISBN 13 :
Total Pages : 288 pages
Book Rating : 4.X/5 ( download)
Download or read book Combustion Aerodynamics written by János Miklós Beér and published by . This book was released on 1983 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : American Institute of Aeronautics and Astronautics
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ISBN 13 :
Total Pages : 1380 pages
Book Rating : 4.F/5 ( download)
Download or read book AIAA Journal written by American Institute of Aeronautics and Astronautics and published by . This book was released on 2006 with total page 1380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jeyhoon Mamaghani Khodadadi
Publisher :
ISBN 13 :
Total Pages : 460 pages
Book Rating : 4.:/5 (161 download)
Download or read book An Experimental and Numerical Investigation of Confined Coaxial Turbulent Jets written by Jeyhoon Mamaghani Khodadadi and published by . This book was released on 1986 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Brandon M. Wilson
Publisher :
ISBN 13 :
Total Pages : 180 pages
Book Rating : 4.:/5 (496 download)
Download or read book Demonstration of a Completely Described Swirling Jet Experiment Used for Numerical Validation written by Brandon M. Wilson and published by . This book was released on 2009 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis demonstrates the standard for the design of an experimental model to be used for numerical validation purposes. It is proposed that numerical models may be assessed more accurately and directly by validation with a completely described experimental model, consisting of accurate descriptions of the operating conditions, fluid properties, and experimental uncertainties. This idea is demonstrated using an experimental model of a swirling jet at three Reynolds numbers (Re = 550, 2560, and 3650), with vortex breakdown existing in the higher two Reynolds number cases. Measurements of the swirling jet were obtained at two locations upstream of the jet exit with the intent to provide the flow profiles to the numerical model and four downstream locations used to assess the accuracy of the model. Numerical simulations using the laminar model and k-e, k-w, and k-e-v2-f, turbulence models were used for turbulence closure. Detached Eddy Simulation (DES) and Reynolds-stress model results were also obtained to demonstrate unsteady numerical solutions. The results of the experimental and numerical models are compared to understand the influence on validation using a completely described experimental model.
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ISBN 13 :
Total Pages : 724 pages
Book Rating : 4.E/5 ( download)
Download or read book Japanese Science and Technology written by and published by . This book was released on 1986 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. Zhu
Publisher :
ISBN 13 :
Total Pages : 30 pages
Book Rating : 4.:/5 (31 download)
Download or read book A Numerical Study of Confined Turbulent Jets written by J. Zhu and published by . This book was released on 1993 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: A numerical investigation is reported of turbulent incompressible jets confined in two ducts, one cylindrical and the other conical with a 5 degree divergence. In each case, three Craya-Curtet numbers are considered which correspond, respectively, to flow situations with no moderate and strong recirculation. Turbulence closure is achieved by using the k-epsilon model and a recently proposed realizable Reynolds stress algebraic equation model that relates the Reynolds stresses explicitly to the quadratic terms of the mean velocity gradients and ensures the positiveness of each component of the turbulent kinetic energy. Calculations are carried out with a finite-volume procedure using boundary-fitted curvilinear coordinates. A second-order accurate, bounded convection scheme and sufficiently fine grids are used to prevent the solutions from being contaminated by numerical diffusion. The calculated results are compared extensively with the available experimental data. It is shown that the numerical methods presented are capable of capturing the essential flow features observed in the experiments and that the realizable Reynolds stress algebraic equation model performs much better than the k-epsilon model for this class of flows of great practical importance.
Author : Sara Toutiaei
Publisher :
ISBN 13 : 9781321238839
Total Pages : 52 pages
Book Rating : 4.2/5 (388 download)
Download or read book Experimental Investigation of Turbulent Swirling Jets written by Sara Toutiaei and published by . This book was released on 2014 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, velocity distributions of a swirling and a non-swirling jet flows were obtained using Laser Doppler Anemometer (LDA) in the near field where both jets are at the same stages of development. The resulting mean velocity and Reynolds stress distributions and the energy budgets of the axial Reynolds stresses are assessed. All Reynolds stresses showed higher magnitude in the swirling case compared to the non-swirling one at the same measurement axial locations. The swirling jet is found to exhibit larger production, mean convection and turbulence transport terms in the energy budget of axial Reynolds stress. The result shows faster development of the swirling jet compared with the non-swirling jet and is in consistency with previous studies. The turbulent transport term is found to be responsible for the faster development of the turbulence in the swirling jet.
