An Analytical Solution of the Thick Axisymmetric Turbulent Boundary Layer on a Long Cylinder of Constant Radius

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Total Pages : 186 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis An Analytical Solution of the Thick Axisymmetric Turbulent Boundary Layer on a Long Cylinder of Constant Radius by : Nuray Denli

Download or read book An Analytical Solution of the Thick Axisymmetric Turbulent Boundary Layer on a Long Cylinder of Constant Radius written by Nuray Denli and published by . This book was released on 1978 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two similarity laws for a thick, axisymmetric, turbulent boundary layer on a long circular cylinder have been established. The validity of the assumption of constant-stress moment in the law-of-the-wall region is analyzed under the assumption of similarity. A new logarithmic mixing length, which takes into consideration the effect of transverse curvature on turbulence, is proposed for the law-of-the-wall region. With this logarithmic mixing-length models, the mean-flow momentum equation yields a law-of-the-wall relation in terms of the exponential integral in the logarithmic portion of the inner layer. Comparisons with available data and other proposed relations reveal that this logarithmic law gives a definite improvement. Also a mathematical explanation is given as to why the cylinder data do not deviate appreciably from the classical two-dimensional law-of-the-wall, even though it is observed that the turbulent characteristics, such as the size of large eddies and the turbulent intensities are much smaller than for a flat plate.

On the Equations of a Thick Axisymmetric Turbulent Boundary Layer

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ISBN 13 :
Total Pages : 46 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis On the Equations of a Thick Axisymmetric Turbulent Boundary Layer by : Virendrakumar Chaturbhai Patel

Download or read book On the Equations of a Thick Axisymmetric Turbulent Boundary Layer written by Virendrakumar Chaturbhai Patel and published by . This book was released on 1973 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: An examination of the Reynolds equations for axisymmetric turbulent flow where the thickness of the boundary layer is of the same order as the transverse radius of curvature of the surface shows that neither the boundary layer nor the potential flow outside it may be calculated independently of the other, owing to significant interactions between the two flow regimes. Following a discussion of various procedures for extending conventional thin boundary-layer calculation methods to treat thick axisymmetric turbulent boundary-layers, a method is proposed for the simultaneous solution of the boundary layer and the potential flow equations, allowing the two flow regimes to interact. (Author Modified Abstract).

Scientific and Technical Aerospace Reports

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ISBN 13 :
Total Pages : 1096 pages
Book Rating : 4.X/5 (4 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1979 with total page 1096 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Further Study of the Thick Axisymmetric Turbulent Boundary Layer

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ISBN 13 :
Total Pages : 22 pages
Book Rating : 4.3/5 (121 download)

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Book Synopsis Further Study of the Thick Axisymmetric Turbulent Boundary Layer by : V. C. Patel

Download or read book Further Study of the Thick Axisymmetric Turbulent Boundary Layer written by V. C. Patel and published by . This book was released on 1978 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Technical Abstract Bulletin

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ISBN 13 :
Total Pages : 1186 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Technical Abstract Bulletin by :

Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1979 with total page 1186 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Journal of Hydronautics

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ISBN 13 :
Total Pages : 504 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Journal of Hydronautics by :

Download or read book Journal of Hydronautics written by and published by . This book was released on 1977 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: A publication of the American Institute of Aeronautics and Astronautics devoted to marine science and technology.

The Axisymmetric Turbulent Boundary Layer on an Extremely Long Cylinder

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Total Pages : 26 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis The Axisymmetric Turbulent Boundary Layer on an Extremely Long Cylinder by : Frank M. White

Download or read book The Axisymmetric Turbulent Boundary Layer on an Extremely Long Cylinder written by Frank M. White and published by . This book was released on 1969 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: An analysis is presented which predicts the properties of an arbitrarily thick turbulent boundary layer in axial flow past a long cylinder. The study makes use of a modified form of the turbulent law-of-the-wall, which properly accounts for transverse curvature effects. Using this law, the theory which follows is then an exact solution to the axisymmetric equations of continuity and momentum in incompressible flow. Numerical results are given to show the effect of curvature on the various boundary layer characteristics. Skin friction and drag coefficients can be increased greatly with increasing curvature while boundary layer thickness is decreased. When defined in their axisymmetric form, the displacement and momentum thickness are both decreased by curvature. The velocity profile is flattened greatly and the shape factor approaches unity at large curvature. The failure of earlier power-law theories to make accurate predictions is shown to be due to their inadequate handling of the strong profile shape changes. (Author).

Dissertation Abstracts International

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ISBN 13 :
Total Pages : 742 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Dissertation Abstracts International by :

Download or read book Dissertation Abstracts International written by and published by . This book was released on 1979 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Simple Integral Method for the Calculation of Thick Axisymmetric Turbulent Boundary Layers

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ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.3/5 (121 download)

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Book Synopsis Simple Integral Method for the Calculation of Thick Axisymmetric Turbulent Boundary Layers by : Virendrakumar Chaturbhai Patel

Download or read book Simple Integral Method for the Calculation of Thick Axisymmetric Turbulent Boundary Layers written by Virendrakumar Chaturbhai Patel and published by . This book was released on 1973 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

An Approximate Solution for Compressible Axisymmetric Laminar Boundary Layers Including the Effects of Transverse Curvature

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ISBN 13 :
Total Pages : 130 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis An Approximate Solution for Compressible Axisymmetric Laminar Boundary Layers Including the Effects of Transverse Curvature by : Jay M. Solomon

Download or read book An Approximate Solution for Compressible Axisymmetric Laminar Boundary Layers Including the Effects of Transverse Curvature written by Jay M. Solomon and published by . This book was released on 1967 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: An approximate momentum integral solution for the compressible axisymmetrix laminar boundary layer when transverse curvature effects are important is presented. Both finite and infinite inviscid Mach numbers are considered. Detailed comparisons with exact asymptotic solutions are given. The method is found, in many instances, to agree to leading order with the exact solutions as the transverse curvature becomes very large--a property that none of the existing approximate solutions for compressible flow possess. Some example calculations for a cone in supersonic and hypersonic flow are presented. Also, the method is applied to the hypersonic self-induced pressure problem for a cone. (Author).

Flowing Through Time

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ISBN 13 :
Total Pages : 324 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Flowing Through Time by : Cornelia Fleischer Mutel

Download or read book Flowing Through Time written by Cornelia Fleischer Mutel and published by . This book was released on 1998 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Method for Predicting Compressible Turbulent Boundary Layers in Adverse Pressure Gradients

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ISBN 13 :
Total Pages : 68 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Method for Predicting Compressible Turbulent Boundary Layers in Adverse Pressure Gradients by : Shimer Zane Pinckney

Download or read book Method for Predicting Compressible Turbulent Boundary Layers in Adverse Pressure Gradients written by Shimer Zane Pinckney and published by . This book was released on 1971 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Analysis of Turbulent Boundary Layers

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ISBN 13 :
Total Pages : 430 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Analysis of Turbulent Boundary Layers by : Tuncer Cebeci

Download or read book Analysis of Turbulent Boundary Layers written by Tuncer Cebeci and published by . This book was released on 1974 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Comprehensive Dissertation Index

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ISBN 13 :
Total Pages : 760 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Comprehensive Dissertation Index by :

Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1984 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:

American Doctoral Dissertations

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ISBN 13 :
Total Pages : 620 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis American Doctoral Dissertations by :

Download or read book American Doctoral Dissertations written by and published by . This book was released on 1978 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Thick Axisymmetric Turbulent Boundary Layer and Near Wake of a Low-drag Body of Revolution

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ISBN 13 :
Total Pages : 150 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Thick Axisymmetric Turbulent Boundary Layer and Near Wake of a Low-drag Body of Revolution by : Virendrakumar Chaturbhai Patel

Download or read book Thick Axisymmetric Turbulent Boundary Layer and Near Wake of a Low-drag Body of Revolution written by Virendrakumar Chaturbhai Patel and published by . This book was released on 1977 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Detailed measurements of pressure distributions, mean velocity profiles and Reynolds stresses were made in the thick, axisymmetric boundary layer and the near wake of a low-drag body of revolution. The data are presented in graphical as well as tabular form for convenience in later analysis. These measurements shed some light on the joint influence of transverse and longitudinal surface curvatures and pressure gradients on the boundary-layer development and on the manner in which an axisymmetric boundary layer becomes a fully-developed wake. Apart from giving a complete set of data on such an important flow configuration, the measurements should provide a fairly rigorous test case for some of the recent turbulence closure models which claim a level of generality not achieved by the older phenomenological models. By inclusion of recently proposed modifications to account for the effects of the extra rates of strain on the turbulence length scale arising from longitudinal and transverse surface curvatures, it is shown that the boundary layer in the tail region of a body of revolution is dominated by the extra strain rates and that more research is needed to account for them properly even in the most recent calculation procedures.

Applied Mechanics Reviews

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ISBN 13 :
Total Pages : 528 pages
Book Rating : 4.:/5 (26 download)

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Book Synopsis Applied Mechanics Reviews by :

Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1973 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: