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Author : Andrew T. Thies
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (85 download)
Download or read book Computation of Turbulent Axisymmetric and Nonaxisymmetric Jet Flows Using the K-e Model written by Andrew T. Thies and published by . This book was released on 1996 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781724264602
Total Pages : 30 pages
Book Rating : 4.2/5 (646 download)
Download or read book Computation of Turbulent Flows Using an Extended K-Epsilon Turbulence Closure Model written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-26 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: An extended kappa-epsilon turbulence model is proposed and tested with successful results. An improved transport equation for the rate of dissipation of the turbulent kinetic energy, epsilon, is proposed. The proposed model gives more effective response to the energy production rate than does the standard kappa-epsilon turbulence model. An extra time scale of the production range is included in the dissipation rate equation. This enables the present model to perform equally well for several turbulent flows with different characteristics, e.g., plane and axisymmetric jets, turbulent boundary layer flow, turbulent flow over a backward-facing step, and a confined turbulent swirling flow. A second-order accurate finite difference boundary layer code and a nearly second-order accurate finite difference elliptic flow solver are used for the present numerical computations. Chen, Y.-S. and Kim, S.-W. Unspecified Center NASA-CR-179204, NAS 1.26:179204 NAS8-35918
Author : S. Biringen
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.F/5 ( download)
Download or read book Application of Some Turbulence Models to the Computation of an Axisymmetric Jet in Streaming Flow written by S. Biringen and published by . This book was released on 1974 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Farhad Raiszadeh
Publisher :
ISBN 13 :
Total Pages : 368 pages
Book Rating : 4.:/5 (18 download)
Download or read book The Sensitivity Analysis in K-epsilon Turbulence Modeling Applied to Jet Flows written by Farhad Raiszadeh and published by . This book was released on 1984 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael D. DeWulf
Publisher :
ISBN 13 : 9781423533290
Total Pages : 136 pages
Book Rating : 4.5/5 (332 download)
Download or read book Computational Fluid Dynamics Prediction of Subsonic Axisymmetric and Two-Dimensional Heated Free Turbulent Air Jets written by Michael D. DeWulf and published by . This book was released on 2000-09 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study was conducted to evaluate the accuracy of a commercial computational fluid dynamics (CFD) code (CFDRC-ACE+) for predicting incompressible air jet flows with simple geometries. Specifically, the axis- symmetric and two-dimensional heated air-jets were simulated using a standard k- epsilon turbulence model. These CFD predictions were directly compared to an extensive compilation of experimental data from archive literature. The round jet results indicated that the code over-predicted the velocity-spreading rate by 24% and the temperature spreading rate by 29%.
Author : S. B. Jia
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (593 download)
Download or read book Numerical Calculation of a Turbulent Axisymmetric Jet written by S. B. Jia and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Adm Nasa
Publisher : Independently Published
ISBN 13 : 9781723765001
Total Pages : 42 pages
Book Rating : 4.7/5 (65 download)
Download or read book Survey of Turbulence Models for the Computation of Turbulent Jet Flow and Noise written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-09-17 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report presents an overview of jet noise computation utilizing the computational fluid dynamic solution of the turbulent jet flow field. The jet flow solution obtained with an appropriate turbulence model provides the turbulence characteristics needed for the computation of jet mixing noise. A brief account of turbulence models that are relevant for the jet noise computation is presented. The jet flow solutions that have been directly used to calculate jet noise are first reviewed. Then, the turbulent jet flow studies that compute the turbulence characteristics that may be used for noise calculations are summarized. In particular, flow solutions obtained with the k-e model, algebraic Reynolds stress model, and Reynolds stress transport equation model are reviewed. Since, the small scale jet mixing noise predictions can be improved by utilizing anisotropic turbulence characteristics, turbulence models that can provide the Reynolds stress components must now be considered for jet flow computations. In this regard, algebraic stress models and Reynolds stress transport models are good candidates. Reynolds stress transport models involve more modeling and computational effort and time compared to algebraic stress models. Hence, it is recommended that an algebraic Reynolds stress model (ASM) be implemented in flow solvers to compute the Reynolds stress components.Nallasamy, N.Glenn Research CenterTURBULENCE MODELS; AERODYNAMIC NOISE; COMPUTATIONAL FLUID DYNAMICS; JET AIRCRAFT NOISE; NOISE PREDICTION; FLOW DISTRIBUTION; TURBULENT JETS; REYNOLDS STRESS; STRESS ANALYSIS; MATHEMATICAL MODELS; ANISOTROPY
Author : J. Zhu
Publisher :
ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (317 download)
Download or read book Computation of Confined Coflow Jets with Three Turbulence Models written by J. Zhu and published by . This book was released on 1993 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : James W. Fulton
Publisher :
ISBN 13 :
Total Pages : 214 pages
Book Rating : 4.:/5 (135 download)
Download or read book Turbulent Axisymmetric Jet Flow Confined in a Pipe written by James W. Fulton and published by . This book was released on 1985 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bassam A. Younis
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (317 download)
Download or read book On the Prediction of Free Turbulent Jets with Swirl Using a Quadratic Pressure-strain Model written by Bassam A. Younis and published by . This book was released on 1994 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.:/5 (317 download)
Download or read book An Improved K-epsilon Model for Near-wall Turbulence and Comparison with Direct Numerical Simulation written by and published by . This book was released on 1990 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : N. Rajaratnam
Publisher : Elsevier
ISBN 13 : 0080869963
Total Pages : 315 pages
Book Rating : 4.0/5 (88 download)
Download or read book Turbulent Jets written by N. Rajaratnam and published by Elsevier. This book was released on 1976-01-01 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: Turbulent Jets
Author : B. Mohammadi
Publisher :
ISBN 13 :
Total Pages : 222 pages
Book Rating : 4.3/5 (91 download)
Download or read book Analysis of the K-Epsilon Turbulence Model written by B. Mohammadi and published by . This book was released on 1994-09-06 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aimed at applied mathematicians interested in the numerical simulation of turbulent flows. Centered around the k-&epsis; model, it also deals with other models such as one equation models, subgrid scale models and Reynolds Stress models. Presents the k-&epsis; method for turbulence in a language familiar to applied mathematicians, but has none of the technicalities of turbulence theory.
Author : Shawn Douglas Givler
Publisher :
ISBN 13 :
Total Pages : 442 pages
Book Rating : 4.:/5 (385 download)
Download or read book Computations of an Axisymmetric Turbulent Free Jet written by Shawn Douglas Givler and published by . This book was released on 1994 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.:/5 (317 download)
Download or read book Survey of Turbulence Models for the Computation of Turbulent Jet Flow and Noise written by and published by . This book was released on 1999 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download An Improved [k-epsilon] Model for Near-wall Turbulence and Comparison with Direct Numerical Simulation PDF Online Free](https://books.google.com/books/content/images/frontcover/cIQjPISS6p0C?fife=w200-h370)
Author : T. H. Shih
Publisher :
ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.:/5 (31 download)
Download or read book An Improved [k-epsilon] Model for Near-wall Turbulence and Comparison with Direct Numerical Simulation written by T. H. Shih and published by . This book was released on 1990 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Y.-S. Chen
Publisher :
ISBN 13 :
Total Pages : 22 pages
Book Rating : 4.:/5 (964 download)
Download or read book Computation of Turbulent Flows Using an Extended K-e Turbulence Closure Model written by Y.-S. Chen and published by . This book was released on 1987 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
