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Book Approximate Formulas for the Computation of Turbulent Boundary layer Momentum Thicknesses in Compressible Flows

Download or read book Approximate Formulas for the Computation of Turbulent Boundary layer Momentum Thicknesses in Compressible Flows written by Neal Tetervin and published by . This book was released on 1946 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summary: Approximate formulas for the computation of the momentum thicknesses of turbulent boundary layers on two-dimensional bodies, on bodies of revolution at zero angle of attack, and on the inner surfaces of round channels all in compressible flow are given in the form of integrals that can be conveniently computed. The formulas involve the assumptions that the momentum thickness may be computed by use of a boundary-layer velocity profile which is fixed and that skin-friction formulas for flat plates may be used in the computation of boundary-layer thicknesses in flow with pressure gradients. The effect of density changes on the ration of the displacement thickness to the momentum thickness of the boundary layer is taken into account. Use is made of the experimental finding that the skin-friction coefficient for turbulent flow is independent of Mach number. The computations indicated that the effect of density changes on the momentum thickness in flows with pressure gradients is small for subsonic flows.

Book ASME 66 APM F

    Book Details:
  • Author : Julius C. Rotta
  • Publisher :
  • Release : 1966
  • ISBN :
  • Pages : 9 pages

Download or read book ASME 66 APM F written by Julius C. Rotta and published by . This book was released on 1966 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Recent Advances in Boundary Layer Theory

Download or read book Recent Advances in Boundary Layer Theory written by Alfred Kluwick and published by Springer. This book was released on 1998-08-12 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dedicated to Prof. W.Schneider on the Occasion of his 60th Birthday

Book Proceedings  Computation of Turbulent Boundary Layers   1968 Afosr ifp stanford Conference  Stanford Univ   Calif   19 24 August 1968  Volume I  Methods  Predictions  Evaluation and Flow Structure

Download or read book Proceedings Computation of Turbulent Boundary Layers 1968 Afosr ifp stanford Conference Stanford Univ Calif 19 24 August 1968 Volume I Methods Predictions Evaluation and Flow Structure written by S. J. Kline and published by . This book was released on 1969 with total page 615 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of the conference were: (1) To lay a sounder foundation for generalizations of predictive methods in turbulent boundary layers. (2) To provide a more complete and consistent set of data. (3) To compare predictions from as many current methods as possible with data. Volume I contains output from 28 methods and descriptions of 25; the remaining 3 are well known older methods which are given for comparison. It also contains: discussions on experiments needed for further advances, the morphology of the theories, an evaluation report, reports on various questions by ad hoc subcommittees, digests of two questionaires, a summary by the editors, several papers and summaries on boundary layer physics, a number of more formal comments peering into the future and the gist of the discussions. (Author).

Book Evaluation of a Method for Computation of Separated  Turbulent  Compressible Boundary Layers

Download or read book Evaluation of a Method for Computation of Separated Turbulent Compressible Boundary Layers written by M. C. Altstatt and published by . This book was released on 1976 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: A computer code for a turbulent, compressible boundary-layer method, capable of carrying out computations in a region of separated flow, is developed and tested. The procedure after separation is to specify either friction velocity or boundary-layer thickness as an independent variable and obtain external velocity as a dependent variable. This requires a trial and error alternation of the specified variable in order to match the desired experimental or computed external velocity. Satisfactorily results were obtained by this method in the analysis of certain specialized cases of separated flow. (Author).

Book Advances in Computation  Modeling and Control of Transitional and Turbulent Flows

Download or read book Advances in Computation Modeling and Control of Transitional and Turbulent Flows written by Tapan Kumar Sengupta and published by World Scientific. This book was released on 2015-12-01 with total page 551 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The role of high performance computing in current research on transitional and turbulent flows is undoubtedly very important. This review volume provides a good platform for leading experts and researchers in various fields of fluid mechanics dealing with transitional and turbulent flows to synergistically exchange ideas and present the state of the art in the fields. Contributed by eminent researchers, the book chapters feature keynote lectures, panel discussions and the best invited contributed papers."--

Book A Closure Model for Calculating the Development of Turbulent Boundary Layers

Download or read book A Closure Model for Calculating the Development of Turbulent Boundary Layers written by Hsianmin Francort Jen and published by . This book was released on 1976 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Modeling and Computation of Boundary Layer Flows

Download or read book Modeling and Computation of Boundary Layer Flows written by Tuncer Cebeci and published by Springer. This book was released on 2009-09-02 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition of the book, Modeling and Computation of Boundary-Layer Flows^ extends the topic to include compressible flows. This implies the inclusion of the energy equation and non-constant fluid properties in the continuity and momentum equations. The necessary additions are included in new chapters, leaving the first nine chapters to serve as an introduction to incompressible flows and, therefore, as a platform for the extension. This part of the book can be used for a one semester course as described below. Improvements to the incompressible flows portion of the book include the removal of listings of computer programs and their description, and their incor poration in two CD-ROMs. A listing of the topics incorporated in the CD-ROM is provided before the index. In Chapter 7 there is a more extended discussion of initial conditions for three-dimensional flows, application of the characteristic box to a model problem and discussion of flow separation in three-dimensional laminar flows. There are also changes to Chapter 8, which now includes new sections on Tollmien-Schlichting and cross-flow instabilities and on the predic tion of transition with parabolised stability equations, and Chapter 9 provides a description of the rational behind interactive boundary-layer procedures.

Book Computation of Incompressible  Three Dimensional Turbulent Boundary Layers and Comparison with Experiment

Download or read book Computation of Incompressible Three Dimensional Turbulent Boundary Layers and Comparison with Experiment written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-08-14 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Incompressible three dimensional, turbulent boundary layer (3DTBL) experiments were simulated numerically by integrating the boundary layer equations together with an algebraic eddy viscosity turbulence model. For the flow treated, the downstream portion, where the crossflow was large, was not predicted with the present computational method; the flow was significantly influenced by elliptic flow field effects. Departures from the boundary layer concept are indicated. Calculations agreed reasonably well with the mean flow development up to separation. In one experiment the normal pressure gradients were found to be neligible in regions with large skewing and allowed testing turbulence models using the boundary layer equations. The simulation of this flow compared favorably with the experimental data throughout the flow field and suggested the applicability of algebraic eddy viscosity models for 3DTBLs. Mueller, U. R. Ames Research Center NASA-TM-84230, A-8873, NAS 1.15:84230 ...

Book Laminar and Turbulent Boundary Layers

Download or read book Laminar and Turbulent Boundary Layers written by Matiur Rahman and published by Southampton [England] : Computational Mechanics Publication. This book was released on 1997 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume examines laminar and turbulent boundary layers as applied to the physical problems of fluid mechanics.

Book Development of an Efficient Numerical Scheme for the Computation of Turbulent Boundary Layer Flows Over Two dimensional and Axisymmetric Bodies

Download or read book Development of an Efficient Numerical Scheme for the Computation of Turbulent Boundary Layer Flows Over Two dimensional and Axisymmetric Bodies written by Veer N. Vatsa and published by . This book was released on 1976 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Further Developments in Turbulence Management

Download or read book Further Developments in Turbulence Management written by K. Krishna Prasad and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thrust of modern research on turbulence in fluids is concerned with coherent structures and modelling. Riblets have been shown to reduce drag, and the papers presented in this volume tackle the main question of the mechanism responsible for this behaviour in turbulent flow. The contributions in this volume were presented at the Sixth Drag Reduction Meeting held at Eindhoven during November 1991. This volume will be a useful reference work for engineers, physicists and applied mathematicians interested in the topic of fluid turbulence.

Book Analytical  Numerical  and Experimental Results on Turbulent Boundary Layers

Download or read book Analytical Numerical and Experimental Results on Turbulent Boundary Layers written by David L. Whitfield and published by . This book was released on 1976 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the results of analytical, numerical, and experimental investigations of incompressible and compressible boundary layers. The subjects considered are (1) Laminar and/or turbulent numerical boundary-layer calculations in which the Reynolds stress is related to the turbulent kinetic energy; (2) an analytical investigation of turbulence near a wall which is not founded on classical mixing-length theory; (3) analytical solutions for relating velocity and temperature throughout turbulent boundary layers for nonunity Prandtl numbers; (4) a description of the data reduction of pitot pressure measurements utilizing these analytical results, and (5) the application of the numerical and analytical results to the analysis of turbulent boundary-layer measurements made in the Propulsion Wind Tunnel Facility (PWT).

Book A Method of Calculating Turbulent boundary layer Growth at Hypersonic Mach Numbers

Download or read book A Method of Calculating Turbulent boundary layer Growth at Hypersonic Mach Numbers written by James C. Sivells and published by . This book was released on 1959 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: A method is developed for calculating the growth of a turbulent boundary layer at hypersonic Mach numbers. Excellent agreement with experimental results from axisymmetric nozzles has been obtained by the application of this method. The method utilizes a modification of Stewartson's transformation to simplify the integration of the momentum equation. Heat transfer is taken into account by evaluating the gas properties at Eckert's reference temperature and by using a modification of Crocco's quadratic for the temperature distribution in the boundary layer. A new empirical relation is used for the incompressible friction coefficient which agrees with experimental data over a Reynold's number range from 10(superscript 5) to 10(superscript 9).

Book Recent Advances in Boundary Layer Theory

Download or read book Recent Advances in Boundary Layer Theory written by Alfred Kluwick and published by Springer. This book was released on 2014-05-04 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent advances in boundary-layer theory have shown how modern analytical and computational techniques can and should be combined to deepen the understanding of high Reynolds number flows and to design effective calculation strategies. This is the unifying theme of the present volume which addresses laminar as well as turbulent flows.