Calculation of Three-dimensional Boundary Layers on Ship Forms

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ISBN 13 :
Total Pages : 220 pages
Book Rating : 4.3/5 (121 download)

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Book Synopsis Calculation of Three-dimensional Boundary Layers on Ship Forms by : Kua C. Chang

Download or read book Calculation of Three-dimensional Boundary Layers on Ship Forms written by Kua C. Chang and published by . This book was released on 1975 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: An implicit finite difference technique, in curvilin ear-orthogonal surface coordinates, has been developed for the solution of the differential equations of three-dimensional laminar and turbulent boundary layers on ship forms. For turbulent flow, a two-layer eddy-viscosity model has been employed as the closure model. The initial and boundary conditions required to solve the equations and the stability and accuracy of the numerical method are discussed at some length. Two mathematically-defined simple three-dimensional ship forms are studied in some detail. These are a tri-axial ellipsoid and a double elliptic ship.

Calculation of Three-Dimensional Boundary Layers Around Ship Hull Forms

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ISBN 13 :
Total Pages : 14 pages
Book Rating : 4.:/5 (228 download)

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Book Synopsis Calculation of Three-Dimensional Boundary Layers Around Ship Hull Forms by : Shunji Soejima

Download or read book Calculation of Three-Dimensional Boundary Layers Around Ship Hull Forms written by Shunji Soejima and published by . This book was released on 1983 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerical investigations is made into complex three-dimensional boundary layers around ship hull forms. At first, simple model of natural transition for boundary layers on ship fore-body surface is presented. Transitional boundary layer from laminar to turbulent calculated by using this model agreed very well with experimental results. Investigation is carried out about influence of the change of laminar boundary layer region and Reynolds number on the flow field around ship forebody. The results shows that unstable flow pattern at bilge part is varied drastically due to above influence at comparatively low Reynolds number since turbulence intensity is smaller than that at high Reynolds number.

A General Method for Calculating Three-dimensional Laminar and Turbulent Boundary Layers on Ship Hulls

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ISBN 13 :
Total Pages : 61 pages
Book Rating : 4.:/5 (5 download)

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Book Synopsis A General Method for Calculating Three-dimensional Laminar and Turbulent Boundary Layers on Ship Hulls by : Tuncer Cebeci

Download or read book A General Method for Calculating Three-dimensional Laminar and Turbulent Boundary Layers on Ship Hulls written by Tuncer Cebeci and published by . This book was released on 1972 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Calculation of Three-dimensional Boundary Layers on Bodies at Incidence

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ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.3/5 (121 download)

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Book Synopsis Calculation of Three-dimensional Boundary Layers on Bodies at Incidence by : V. C. Patel

Download or read book Calculation of Three-dimensional Boundary Layers on Bodies at Incidence written by V. C. Patel and published by . This book was released on 1982 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three-dimensional thin boundary-layer equations for laminar and turbulent flows are solved by two different numerical schemes. The methods are applied to the flow over bodies of revolution at incidence and the results are compared with the available experimental data in order to study the range of validity of the classical boundary-layer approximations in regions of increasing circumferential gradients and flow reversal associated with the early stages of a free-vortex type of separation. Comparison with the DFVLR 6:1 spheroid data of Meier et al and the 4:1 combination-body data of Ramaprian, Patel and Choi indicate that the methods perform well in regions where the boundary layer remains thin but the predictions deteriorate as the boundary layer thickens. The results point out the need for the development of methods of handle thick boundary layers and viscous-inviscid interactions. (Author).

Orthogonal Coordinate Systems for Three-dimensional Boundary Layers

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ISBN 13 :
Total Pages : 54 pages
Book Rating : 4.3/5 (121 download)

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Book Synopsis Orthogonal Coordinate Systems for Three-dimensional Boundary Layers by : Touvia Miloh

Download or read book Orthogonal Coordinate Systems for Three-dimensional Boundary Layers written by Touvia Miloh and published by . This book was released on 1972 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: The problem of choosing orthogonal, curvilinear, coordinate systems for use in boundary-layer calculations on arbitrary three-dimensional bodies is considered in some detail. A general method for the practical evaluation of the various geometrical properties of the coordinates occurring in the three-dimensional boundary-layer equations is described. A particular coordinate system which appears to be the most convenient one for ship hulls is then proposed and analyzed further.

The Three-dimensional Boundary Layer

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ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis The Three-dimensional Boundary Layer by : Naval Ordnance Test Station (Inyokern, Calif.)

Download or read book The Three-dimensional Boundary Layer written by Naval Ordnance Test Station (Inyokern, Calif.) and published by . This book was released on 1951 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Integral Prediction Method for Three-dimensional Turbulent Boundary Layers on Ships

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (89 download)

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Book Synopsis Integral Prediction Method for Three-dimensional Turbulent Boundary Layers on Ships by : Christian von Kerczek (Langan, Thomas J, David W. Taylor Naval Ship Research)

Download or read book Integral Prediction Method for Three-dimensional Turbulent Boundary Layers on Ships written by Christian von Kerczek (Langan, Thomas J, David W. Taylor Naval Ship Research) and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Calculations of Three-dimensional Turbulent Boundary Layers Using the Crank-Nicolson Method

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ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.3/5 (121 download)

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Book Synopsis Calculations of Three-dimensional Turbulent Boundary Layers Using the Crank-Nicolson Method by : P. A. Krogstad

Download or read book Calculations of Three-dimensional Turbulent Boundary Layers Using the Crank-Nicolson Method written by P. A. Krogstad and published by . This book was released on 1982 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the results of the three-dimensional turbulent boundary-layer calculations performed for the Eurovisc Workshop held in Berlin on 1 April 1982. It is shown that the present method, based on the Crank-Nicolson finite-difference scheme and a simple eddy-viscosity model for turbulence, yields satisfactory results provided regions of viscous-inviscid interaction, which were present in at least three of the four test cases, are avoided. (Author).

A Calculation Method for the Three-dimensional Boundary-layer Equations in Integral Form

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ISBN 13 :
Total Pages : 148 pages
Book Rating : 4.:/5 (279 download)

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Book Synopsis A Calculation Method for the Three-dimensional Boundary-layer Equations in Integral Form by : Bilal Hafeez Mughal

Download or read book A Calculation Method for the Three-dimensional Boundary-layer Equations in Integral Form written by Bilal Hafeez Mughal and published by . This book was released on 1992 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Flow-visualization of Three-dimensional Boundary-layer Separation on Bodies of Revolution at Incidence

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ISBN 13 :
Total Pages : 86 pages
Book Rating : 4.3/5 (121 download)

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Book Synopsis Flow-visualization of Three-dimensional Boundary-layer Separation on Bodies of Revolution at Incidence by : Taeyoung Han

Download or read book Flow-visualization of Three-dimensional Boundary-layer Separation on Bodies of Revolution at Incidence written by Taeyoung Han and published by . This book was released on 1977 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface streamline patterns on three bodies of revolution, namely a spheroid, a low-drag body and a hemisphere-hemispheroid combination body, have been examined at several angles of attack. Most of the tests were performed at low Reynolds numbers in a hydraulic flume using colored dye to make the surface flow visible. A limited number of experiments was also carried out in a wind tunnel, using wool tufts, to study the influence of Reynolds number and turbulent separation. The study has verified some of the important qualitative features of three-dimensional separation criteria proposed earlier by Maskell, Lighthill, Wang and others. The observed locations of laminar separation lines on a spheroid at various incidences have been compared with the numerical boundary-layer solutions of Wang, and it is suggested that the quantitative differences may be attributed to the significant viscous-inviscid interaction, especially at large incidences. (Author).

Othogonal Coordinate Systems for Three-dimensional Boundary Layers, with Particular Refence to Ship Forms

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (249 download)

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Book Synopsis Othogonal Coordinate Systems for Three-dimensional Boundary Layers, with Particular Refence to Ship Forms by : T. Milch

Download or read book Othogonal Coordinate Systems for Three-dimensional Boundary Layers, with Particular Refence to Ship Forms written by T. Milch and published by . This book was released on 1972 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Calculation Method for Three-dimensional Turbulent Boundary Layers on Ship-like Bodies

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ISBN 13 :
Total Pages : 25 pages
Book Rating : 4.:/5 (185 download)

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Book Synopsis A Calculation Method for Three-dimensional Turbulent Boundary Layers on Ship-like Bodies by : Lars Larsson

Download or read book A Calculation Method for Three-dimensional Turbulent Boundary Layers on Ship-like Bodies written by Lars Larsson and published by . This book was released on 1976 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Computation of Three-dimensional Boundary Layers Including Separation

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ISBN 13 : 9789283504078
Total Pages : 218 pages
Book Rating : 4.5/5 (4 download)

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Book Synopsis Computation of Three-dimensional Boundary Layers Including Separation by :

Download or read book Computation of Three-dimensional Boundary Layers Including Separation written by and published by . This book was released on 1987 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Aspects of the Calculation of Boundary Layers on Ships'.

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ISBN 13 :
Total Pages : 136 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Aspects of the Calculation of Boundary Layers on Ships'. by : Christian H. Von Kerczek

Download or read book Aspects of the Calculation of Boundary Layers on Ships'. written by Christian H. Von Kerczek and published by . This book was released on 1985 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some aspects of three-dimensional laminar boundary layers at attachment lines were investigated. In particular, the boundary layer on the attachment line between a nodal and saddle point of attachment was solved by numerical and perturbation methods. It was shown that the boundary layer equations could be solved in the separated region near the saddle point without viscous/inviscid interactions. The general three-dimensional boundary layer an oblate spheroids in edgewise flow was also investigated. Attention was focussed on crossflow reversal near the lateral ends (tips) of the spheroid.

The Numerical Calculation of Three-dimensional Boundary Layers

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ISBN 13 :
Total Pages : 280 pages
Book Rating : 4.:/5 (641 download)

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Book Synopsis The Numerical Calculation of Three-dimensional Boundary Layers by : Richard Allen Burbank

Download or read book The Numerical Calculation of Three-dimensional Boundary Layers written by Richard Allen Burbank and published by . This book was released on 1972 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A General Method for Calculating Three-dimensional Laminar and Turbulent Boundary Layers on Ship Hulls

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ISBN 13 :
Total Pages : 47 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis A General Method for Calculating Three-dimensional Laminar and Turbulent Boundary Layers on Ship Hulls by : Tuncer Cebeci

Download or read book A General Method for Calculating Three-dimensional Laminar and Turbulent Boundary Layers on Ship Hulls written by Tuncer Cebeci and published by . This book was released on 1977 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the progress made during the past year towards the development of a general method for computing three-dimensional incompressible laminar and turbulent boundary layers on ship hulls. The method employs an implicit two-point finite-difference method and an algebraic eddy-viscosity formulation. During the past year the efforts concentrated on the choice of an appropriate coordinate system; the calculation of the geometric parameters of this coordinate system; the numerical solution of the governing equation of the orthogonal curvilinear system; and obtaining preliminary results for simple ship forms. Further studies are in progress and will be reported in a forthcoming report.

A calculation method for three-dimensional turbulent boundary layers on ship-like bodies

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ISBN 13 :
Total Pages : 25 pages
Book Rating : 4.:/5 (163 download)

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Book Synopsis A calculation method for three-dimensional turbulent boundary layers on ship-like bodies by : Lars Larsson

Download or read book A calculation method for three-dimensional turbulent boundary layers on ship-like bodies written by Lars Larsson and published by . This book was released on 1975 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: