Finite Difference Form of the Compressible Boundary Layer Equations in Generalized Curvilinear Coordinates PDF Download
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Author: Denis Bergeron
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
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Author: Denis Bergeron
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
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Book Description
Author: Denis Bergeron
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781725635708
Category :
Languages : en
Pages : 36
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Book Description
A set of higher-order boundary-layer equations is derived valid for three-dimensional compressible flows. The equations are written in a generalized curvilinear coordinate system, in which the surface coordinates are nonorthogonal; the third axis is restricted to be normal to the surface. Also, higher-order viscous terms which are retained depend on the surface curvature of the body. Thus, the equations are suitable for the calculation of the boundary layer about arbitrary vehicles. As a starting point, the Navier-Stokes equations are derived in a tensorian notation. Then by means of an order-of-magnitude analysis, the boundary-layer equations are developed. To provide an interface between the analytical partial differentiation notation and the compact tensor notation, a brief review of the most essential theorems of the tensor analysis related to the equations of the fluid dynamics is given. Many useful quantities, such as the contravariant and the covariant metrics and the physical velocity components, are written in both notations. Panaras, Argyris G. Ames Research Center NASA-TM-100003, A-87272, NAS 1.15:100003 RTOP 505-60...
Author: Argyris G. Panaras
Publisher:
ISBN:
Category :
Languages : en
Pages : 40
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Author: Timothy Wade Swafford
Publisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 300
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Book Description
A method is presented for computing three-dimensional, time-dependent, compressible, turbulent boundary layers in nonorthogonal curvilinear coordinates. An integral method is employed in the interest of computational speed and because the three-dimensional method is an extension of an existing two-dimensional method. After presenting a detailed derivation of the integral form of the boundary-layer equations, the necessary auxiliary relations are given along with the relationships between integral lengths expressed in streamline and nonorthogonal coordinates. A time dependent approach is used to account for time accuracy (if desired) and to provide a method that is compatible with the surface grid used by an inviscid solver for use in viscous-inviscid interaction calculations. The equations are solved using a Runge-Kutta scheme with local time stepping to accelerate convergence. Stability and convergence of the numerical scheme are examined for various space differences compared with measurements and with computations of previous investigators.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 372
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Author: Joseph L. Steger
Publisher:
ISBN:
Category :
Languages : en
Pages : 32
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Author: Z.U.A. Warsi
Publisher: CRC Press
ISBN: 142005788X
Category : Technology & Engineering
Languages : en
Pages : 860
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Book Description
Many introductions to fluid dynamics offer an illustrative approach that demonstrates some aspects of fluid behavior, but often leave you without the tools necessary to confront new problems. For more than a decade, Fluid Dynamics: Theoretical and Computational Approaches has supplied these missing tools with a constructive approach that mad
Author: Haecheon Choi
Publisher: Springer Science & Business Media
ISBN: 3642012736
Category : Technology & Engineering
Languages : en
Pages : 776
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Book Description
We are delighted to present this book which contains the Proceedings of the Fifth International Conference on Computational Fluid Dynamics (ICCFD5), held in Seoul, Korea from July 7 through 11, 2008. The ICCFD series has established itself as the leading international conference series for scientists, mathematicians, and engineers specialized in the computation of fluid flow. In ICCFD5, 5 Invited Lectures and 3 Keynote Lectures were delivered by renowned researchers in the areas of innovative modeling of flow physics, innovative algorithm development for flow simulation, optimization and control, and advanced multidisciplinary - plications. There were a total of 198 contributed abstracts submitted from 25 countries. The executive committee consisting of C. H. Bruneau (France), J. J. Chattot (USA), D. Kwak (USA), N. Satofuka (Japan), and myself, was responsible for selection of papers. Each of the members had a separate subcommittee to carry out the evaluation. As a result of this careful peer review process, 138 papers were accepted for oral presentation and 28 for poster presentation. Among them, 5 (3 oral and 2 poster presentation) papers were withdrawn and 10 (4 oral and 6 poster presentation) papers were not presented. The conference was attended by 201 delegates from 23 countries. The technical aspects of the conference were highly beneficial and informative, while the non-technical aspects were fully enjoyable and memorable. In this book, 3 invited lectures and 1 keynote lecture appear first. Then 99 c- tributed papers are grouped under 21 subject titles which are in alphabetical order.
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Category : Government reports announcements & index
Languages : en
Pages : 1094
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