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Author : Xiaochun Shen
Publisher :
ISBN 13 :
Total Pages : 332 pages
Book Rating : 4.E/5 ( download)
Download or read book Small Scale Structure in Uniform Wind Tunnel Turbulent Shear Flow written by Xiaochun Shen and published by . This book was released on 2002 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : H. W. Teunissen
Publisher :
ISBN 13 :
Total Pages : 34 pages
Book Rating : 4.:/5 (755 download)
Download or read book An Ejector-driven Wind Tunnel for the Generation of Turbulent Flows with Arbitrary Mean Velocity Profile written by H. W. Teunissen and published by . This book was released on 1969 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new concept for creating turbulence in a wind tunnel was investigated. This concept involves the use of an array of jets to drive an open-circuit wind tunnel on the ejector principle, with the turbulence being created by the shear resulting from the difference in the velocities of the primary air and the entrained flow. A scale model tunnel was constructed, and the flow velocities obtained in it were compared with the predictions of simple ejector theory. Through the control of the velocities of the individual jets in the array, both uniform and shear flows were created, and the turbulence produced in each type of flow was studied. The concept was found to be a successful one, in that useful turbulence can be produced in both the uniform and shear flows. A fairly large range of both scales and intensities of turbulence was achieved. In addition, the results show that flow profiles in a tunnel of this type could be tailored to simulate those of any portion of a boundary layer through the control of the individual jet velocities. The effectiveness of a variable-angle diffuser at the downstream end of the tunnel in controlling mean flow velocities and turbulence characteristics was also investigated. (Author).
Author : D. J. Wilson
Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.F/5 ( download)
Download or read book Turbulent Dispersion in Atmospheric Shear Flow and Its Wind Tunnel Simulation written by D. J. Wilson and published by . This book was released on 1971 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Keith John Eaton
Publisher : Cambridge University Press
ISBN 13 : 9780521208017
Total Pages : 864 pages
Book Rating : 4.2/5 (8 download)
Download or read book Proceedings of the Fourth International Conference on Wind Effects on Buildings and Structures written by Keith John Eaton and published by Cambridge University Press. This book was released on 1977 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes developments in the areas of meteorology, aerodynamics and structural engineering, which effects the wind on buildings and structures.
Author : A. A. Townsend
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (636 download)
Download or read book A Structure of Turbulent Shear Flow written by A. A. Townsend and published by . This book was released on 1956 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A. A. R. Townsend
Publisher : Cambridge University Press
ISBN 13 : 9780521298193
Total Pages : 450 pages
Book Rating : 4.2/5 (981 download)
Download or read book The Structure of Turbulent Shear Flow written by A. A. R. Townsend and published by Cambridge University Press. This book was released on 1976 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: Develops a physical theory from the mass of experimental results, with revisions to reflect advances of recent years.
Author : Jorge Colman Lerner
Publisher : BoD – Books on Demand
ISBN 13 : 9533076232
Total Pages : 728 pages
Book Rating : 4.5/5 (33 download)
Download or read book Wind Tunnels and Experimental Fluid Dynamics Research written by Jorge Colman Lerner and published by BoD – Books on Demand. This book was released on 2011-07-27 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book "Wind Tunnels and Experimental Fluid Dynamics Research" is comprised of 33 chapters divided in five sections. The first 12 chapters discuss wind tunnel facilities and experiments in incompressible flow, while the next seven chapters deal with building dynamics, flow control and fluid mechanics. Third section of the book is dedicated to chapters discussing aerodynamic field measurements and real full scale analysis (chapters 20-22). Chapters in the last two sections deal with turbulent structure analysis (chapters 23-25) and wind tunnels in compressible flow (chapters 26-33). Contributions from a large number of international experts make this publication a highly valuable resource in wind tunnels and fluid dynamics field of research.
Author : William George Rose
Publisher :
ISBN 13 :
Total Pages : 62 pages
Book Rating : 4.X/5 (4 download)
Download or read book Interaction of grid turbulence with a uniform mean-shear written by William George Rose and published by . This book was released on 1970 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments were performed to explore the effect of initial disturbance length-scale on turbulence developed in the presence of a uniform mean-shear. Flows with nearly the same mean-shear (8.6/sec) and initially different turbulent scales are generated in a windtunnel test-section by placing grids just downstream of a honeycomb of uniform cell-diameter (1/4 in) and nonuniform cell-length. Both round-rod grids of uniform square-mesh and parallel-rod construction with roughly equal solidity (0.34) are used. Grid mesh-sizes range from 1/24 to 2 in. From the results it is concluded that for a given value of mean shear the imposed length scale fixes the energy level of the resulting turbulence, provided the scale is sufficiently large. When it is reduced below some minimum value the turbulence decays. Also, it is found that two-dimensional flow-generator geometries are more effective than are three-dimensional geometries in producing a roughly homogeneous turbulent field with a higher fluctuation level in a shorter distance. (Author).
Author :
Publisher :
ISBN 13 :
Total Pages : 1068 pages
Book Rating : 4.X/5 (4 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1965 with total page 1068 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 904 pages
Book Rating : 4.:/5 (31 download)
Download or read book STAR written by and published by . This book was released on 1973 with total page 904 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jack E. Cermak
Publisher :
ISBN 13 :
Total Pages : 39 pages
Book Rating : 4.:/5 (641 download)
Download or read book Wind Tunnel Studies and Simulations of Turbulent Shear Flows Related to Atmospheric Science and Associated Technologies written by Jack E. Cermak and published by . This book was released on 1968 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: A summary of accomplishments is given of both an experimental and analytical nature in the following specific studies: (1) Airflow in simulated temperate and tropical forest canopy. (2) Methods of modeling diffusion tests ahead of time to design most efficient and economical field experiments. (3) Use of controlled models of field tests to extend empirical data on CB transport and diffusion. (4) Extend wind tunnel investigation to thermally stratified boundary layers and broader ranges of surface roughness. (5) Investigation of longitudinal dispersion through both shear flow and turbulence. (6) Extend the Lagrangian similarity hypothesis considering a more realistic probability function. (7) Model Dugway Proving Ground and study mean wind patterns near the ground when flow aloft is oriented SW-SE. (Author).
Author : United States. Energy Research and Development Administration
Publisher :
ISBN 13 :
Total Pages : 1314 pages
Book Rating : 4.3/5 (91 download)
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1976 with total page 1314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Energy Research and Development Administration. Technical Information Center
Publisher :
ISBN 13 :
Total Pages : 962 pages
Book Rating : 4.3/5 (129 download)
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration. Technical Information Center and published by . This book was released on 1976 with total page 962 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jean Piquet
Publisher : Springer Science & Business Media
ISBN 13 : 3662035596
Total Pages : 767 pages
Book Rating : 4.6/5 (62 download)
Download or read book Turbulent Flows written by Jean Piquet and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 767 pages. Available in PDF, EPUB and Kindle. Book excerpt: obtained are still severely limited to low Reynolds numbers (about only one decade better than direct numerical simulations), and the interpretation of such calculations for complex, curved geometries is still unclear. It is evident that a lot of work (and a very significant increase in available computing power) is required before such methods can be adopted in daily's engineering practice. I hope to l"Cport on all these topics in a near future. The book is divided into six chapters, each· chapter in subchapters, sections and subsections. The first part is introduced by Chapter 1 which summarizes the equations of fluid mechanies, it is developed in C~apters 2 to 4 devoted to the construction of turbulence models. What has been called "engineering methods" is considered in Chapter 2 where the Reynolds averaged equations al"C established and the closure problem studied (§1-3). A first detailed study of homogeneous turbulent flows follows (§4). It includes a review of available experimental data and their modeling. The eddy viscosity concept is analyzed in §5 with the l"Csulting ~alar-transport equation models such as the famous K-e model. Reynolds stl"Css models (Chapter 4) require a preliminary consideration of two-point turbulence concepts which are developed in Chapter 3 devoted to homogeneous turbulence. We review the two-point moments of velocity fields and their spectral transforms (§ 1), their general dynamics (§2) with the particular case of homogeneous, isotropie turbulence (§3) whel"C the so-called Kolmogorov's assumptions are discussed at length.
Author : Chia-Chʻiao Lin
Publisher : World Scientific
ISBN 13 : 9789971503185
Total Pages : 1048 pages
Book Rating : 4.5/5 (31 download)
Download or read book Selected Papers of C.C. Lin written by Chia-Chʻiao Lin and published by World Scientific. This book was released on 1987-01-01 with total page 1048 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jack E. Cermak
Publisher :
ISBN 13 :
Total Pages : 546 pages
Book Rating : 4.F/5 ( download)
Download or read book Proceedings written by Jack E. Cermak and published by . This book was released on 1975 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 776 pages
Book Rating : 4.3/5 (91 download)
Download or read book American Doctoral Dissertations written by and published by . This book was released on 2002 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
