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ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (946 download)
Download or read book Bending and development of three-dimensional turbulent jets in a cross wind written by and published by . This book was released on 1970 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hiroshi Endo
Publisher :
ISBN 13 :
Total Pages : 66 pages
Book Rating : 4.:/5 (227 download)
Download or read book Bending and Development of Three-Dimensional Turbulent Jets in a Crosswind written by Hiroshi Endo and published by . This book was released on 1972 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: A semiempirical theory on the bending and development of a round turbulent jet in a subsonic crosswind is presented. A theoretical model of dynamical interaction between the jet and external flow has been formulated by combining an entrainment model and a vortex sheet model, taking into account the inward flow of air outside into the jet induced by a pair of concentrated vortices on the rear side of the jet. The mass inflow rate is related to the moment of the vortex-doublet. (Author).
Author : M. F. Platzer
Publisher :
ISBN 13 :
Total Pages : 548 pages
Book Rating : 4.:/5 (3 download)
Download or read book Prediction methods for jet V/STOL propulsion aerodynamics written by M. F. Platzer and published by . This book was released on 1975 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 702 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 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ayodeji O. Demuren
Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.:/5 (831 download)
Download or read book Numerical Calculation of Steady Three-dimensional Turbulent Jets in Cross Flow written by Ayodeji O. Demuren and published by . This book was released on 1982 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Huongguang Sun
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ISBN 13 :
Total Pages : 414 pages
Book Rating : 4.:/5 (181 download)
Download or read book Development of Three-dimensional Turbulent Wall Jets written by Huongguang Sun and published by . This book was released on 2002 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Detailed flow field measurements were performed to investigate the development of the three-dimensional wall jet, the effect of initial conditions on the development of wall jets and the evolution of the large-scale vortex structures that causes the large lateral growth rate in the flow. Single-point measurements in the wall jet exiting a contoured nozzle indicated that there were two regions in the intermediate field 10 & le; x/D & le; 40. The flow underwent a significant change in the region 10 & le; x/D & le; 20 as it adjusted to the wall. The changes of the profiles of the moments and the reorientation of the regions of the mean streamwise vorticity slowed down in the region beyond x/D = 20 and were not apparent by x/D = 40. The comparison of measurements of wall jets exiting the contoured nozzle and the fully developed long pipe indicated that changes in initial conditions do affect the jet half-widths and the decay of the maximum streamwise velocity through near and intermediate fields. The differences in growth rates of wall jets, profiles of moments and contours of the mean streamwise vorticity in the two jets were reduced in the region after x/D = 10 and were not apparent in the region beyond x/D = 20 & ndash;30. Measurements of two-point, two-time correlation of the streamwise fluctuating velocity indicated that the large-scale vortex structures that consist two pair of horseshoe vortices in the flow continued to develop throughout the intermediate field. In particular, the inner vortex structures were induced towards the wall by the outer structures and the legs of the outer structures inclined relative to the streamwise direction as the flow evolved downstream. Measurements also indicated that the flow below the outer region of the streamwise vorticity was laterally convected faster than the outer vortex structures.
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ISBN 13 :
Total Pages : 300 pages
Book Rating : 4.:/5 (26 download)
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1972 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Choudary Rama Krishna Bobba
Publisher :
ISBN 13 :
Total Pages : 250 pages
Book Rating : 4.:/5 (628 download)
Download or read book Characteristics of Three-dimensional Turbulent Jets written by Choudary Rama Krishna Bobba and published by . This book was released on 1979 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A. O. Demuren
Publisher :
ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.:/5 (31 download)
Download or read book Characteristics of 3D Turbulent Jets in Crossflow written by A. O. Demuren and published by . This book was released on 1991 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development
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ISBN 13 :
Total Pages : 386 pages
Book Rating : 4.:/5 (31 download)
Download or read book AGARD Conference Proceedings written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development and published by . This book was released on 1974 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 746 pages
Book Rating : 4.:/5 (334 download)
Download or read book Research in Progress written by and published by . This book was released on 1969 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781723544934
Total Pages : 218 pages
Book Rating : 4.5/5 (449 download)
Download or read book Computations of Complex Three-Dimensional Turbulent Free Jets written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-23 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three-dimensional, incompressible turbulent jets with rectangular and elliptical cross-sections are simulated with a finite-difference numerical method. The full Navier- Stokes equations are solved at low Reynolds numbers, whereas at high Reynolds numbers filtered forms of the equations are solved along with a sub-grid scale model to approximate the effects of the unresolved scales. A 2-N storage, third-order Runge-Kutta scheme is used for temporary discretization and a fourth-order compact scheme is used for spatial discretization. Although such methods are widely used in the simulation of compressible flows, the lack of an evolution equation for pressure or density presents particular difficulty in incompressible flows. The pressure-velocity coupling must be established indirectly. It is achieved, in this study, through a Poisson equation which is solved by a compact scheme of the same order of accuracy. The numerical formulation is validated and the dispersion and dissipation errors are documented by the solution of a wide range of benchmark problems. Three-dimensional computations are performed for different inlet conditions which model the naturally developing and forced jets. The experimentally observed phenomenon of axis-switching is captured in the numerical simulation, and it is confirmed through flow visualization that this is based on self-induction of the vorticity field. Statistical quantities such as mean velocity, mean pressure, two-point velocity spatial correlations and Reynolds stresses are presented. Detailed budgets of the mean momentum and Reynolds stresses are presented. Detailed budgets of the mean momentum and Reynolds stress equations are presented to aid in the turbulence modeling of complex jets. Simulations of circular jets are used to quantify the effect of the non-uniform curvature of the non-circular jets. Wilson, Robert V. and Demuren, Ayodeji O. Langley Research Center NASA-CR-203976, NAS 1.26:203976, ICAM-97-101 NCC1-232...
Author :
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ISBN 13 :
Total Pages : 556 pages
Book Rating : 4.3/5 (91 download)
Download or read book Prediction Methods for Jet V/STOL Propulsion Aerodynamics written by and published by . This book was released on 1975 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 786 pages
Book Rating : 4.:/5 (41 download)
Download or read book NBS Special Publication written by and published by . This book was released on 1980 with total page 786 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Pauline H. Gurewitz
Publisher :
ISBN 13 :
Total Pages : 404 pages
Book Rating : 4.3/5 (91 download)
Download or read book Hydraulic Research in the United States and Canada, 1978 written by Pauline H. Gurewitz and published by . This book was released on 1980 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. National Bureau of Standards
Publisher :
ISBN 13 :
Total Pages : 402 pages
Book Rating : 4.0/5 ( download)
Download or read book Hydraulic Research in the United States and Canada written by United States. National Bureau of Standards and published by . This book was released on 1978 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Adm Nasa
Publisher : Independently Published
ISBN 13 : 9781729191071
Total Pages : 26 pages
Book Rating : 4.1/5 (91 download)
Download or read book Characteristics of 3D Turbulent Jets in Crossflow written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-10-25 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three dimensional turbulent jets in crossflow at low to medium jet-to-crossflow velocity ratios are computed with a finite volume numerical procedure which utilizes a second-moment closure model to approximate the Reynolds stresses. A multigrid method is used to accelerate the convergence rate of the procedure. Comparison of the computations to measured data show good qualitative agreement. All trends are correctly predicted, though there is some uncertainty on the height of penetration of the jet. The evolution of the vorticity field is used to explore the jet-crossflow interaction. Demuren, A. O. Glenn Research Center NASA ORDER C-99066-G...
