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Structure And Modeling Of The Three Dimensional Boundary Layer On A Rotating Disk Final Report
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Book Synopsis Structure and Modeling of the Three Dimensional Boundary Layer on a Rotating Disk. Final Report by :
Download or read book Structure and Modeling of the Three Dimensional Boundary Layer on a Rotating Disk. Final Report written by and published by . This book was released on 1996 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Almost all practical turbulent flows include three dimensional boundary layers (3DTBL's), and in many cases, the 3DTBL is the dominant feature of the flow. A boundary layer is defined as a thin layer adjacent to the surface in which the velocity drops rapidly from the freestream value to zero at the wall. A 3D boundary layer is one in which the flow direction also changes rapidly approaching the wall. This change in the flow direction called skewing is caused by transverse pressure gradients, centrifugal forces, or motion of the surface. Most research on turbulent boundary layers has been done in simple two dimensional flows in carefully controlled wind tunnels. Such boundary layers are now well understood, and excellent models are available describing both the fluid mechanics and heat transfer behavior. Recent fluid mechanics studies have shown that skewing can have a pronounced effect on the boundary layer turbulence. Models based on eddy-viscosity concepts fail, and more complex stress transport models cannot capture the reduction of turbulent mixing that usually accompanies skewing. It was unknown prior to the present study what effect the skewing might have on turbulent heat transfer. It was suspected that turbulent heat transport would be reduced in analogy to the reductions of turbulent shear stress. It was also unknown how the skewing would effect the turbulent Prandtl number, a quantity which is embedded in most turbulent heat transfer prediction schemes. The objectives of the present study were then to study the surface heat transfer rate and the turbulent heat flux in a simple three dimensional boundary layer. In particular, the research addressed the heat transfer from a heated disk rotating in an otherwise quiescent environment.
Book Synopsis Structure and Modelling of the Three-dimensional Boundary Layer on a Rotating Disk: Progress Report by : J. K. Eaton
Download or read book Structure and Modelling of the Three-dimensional Boundary Layer on a Rotating Disk: Progress Report written by J. K. Eaton and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structure and Modelling of the Three-dimensional Boundary Layer on a Rotating Disk by :
Download or read book Structure and Modelling of the Three-dimensional Boundary Layer on a Rotating Disk written by and published by . This book was released on 1993 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this research are to develop an improved understanding of the effects of mean flow three dimensionality on boundary layer flow and heat transfer. The specific problem of interest, the flow on a large rotating disk in an otherwise quiescent environment was selected for its geometric simplicity and for its relevance to rotating machinery design.
Book Synopsis Experimental Investigation of the Three-dimensional Boundary Layer on a Rotating Disk. Proposal for Research and Progress Report by :
Download or read book Experimental Investigation of the Three-dimensional Boundary Layer on a Rotating Disk. Proposal for Research and Progress Report written by and published by . This book was released on 1989 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of the Three-dimensional Boundary Layer on a Rotating Disk. Progress Report by :
Download or read book Experimental Investigation of the Three-dimensional Boundary Layer on a Rotating Disk. Progress Report written by and published by . This book was released on 1990 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental Investigation of the Three-dimensional Boundary Layer on a Rotating Disk by : Howard Steven Littell
Download or read book An Experimental Investigation of the Three-dimensional Boundary Layer on a Rotating Disk written by Howard Steven Littell and published by . This book was released on 1991 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of the Three-dimensional Boundary Layer on a Rotating Disk by :
Download or read book Experimental Investigation of the Three-dimensional Boundary Layer on a Rotating Disk written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Convective Heat Transfer From Rotating Disks Subjected To Streams Of Air by : Stefan aus der Wiesche
Download or read book Convective Heat Transfer From Rotating Disks Subjected To Streams Of Air written by Stefan aus der Wiesche and published by Springer. This book was released on 2015-07-15 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Brief describes systematically results of research studies on a series of convective heat transfer phenomena from rotating disks in air crossflow. Phenomena described in this volume were investigated experimentally using an electrically heated disk placed in the test section of a wind tunnel. The authors describe findings in which transitions between different heat transfer regimes can occur in dependency on the involved Reynolds numbers and the angle of incidence, and that these transitions could be related to phenomenological Landau and Landau-de Gennes models. The concise volume closes a substantial gap in the scientific literature with respect to flow and heat transfer in rotating disk systems and provides a comprehensive presentation of new and recent results not previously published in book form.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1994 with total page 1746 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch Publisher : ISBN 13 : Total Pages :1080 pages Book Rating :4.E/5 ( download)
Book Synopsis Japanese Science and Technology, 1983-1984 by : United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch
Download or read book Japanese Science and Technology, 1983-1984 written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch and published by . This book was released on 1985 with total page 1080 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 :American Society of Mechanical Engineers. Fluids Engineering Division. Summer Meeting Publisher : ISBN 13 : Total Pages :260 pages Book Rating :4.3/5 (91 download)
Book Synopsis Boundary Layer and Free Shear Flows by : American Society of Mechanical Engineers. Fluids Engineering Division. Summer Meeting
Download or read book Boundary Layer and Free Shear Flows written by American Society of Mechanical Engineers. Fluids Engineering Division. Summer Meeting and published by . This book was released on 1994 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Study of a Three-dimensional Turbulent Boundary Layer by : Parviz Moin
Download or read book Numerical Study of a Three-dimensional Turbulent Boundary Layer written by Parviz Moin and published by . This book was released on 1990 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications by :
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advances in Three-dimensional Turbulent Boundary Layers with Emphasis on the Wall-layer Regions by : Stanford University. Thermosciences Division. Thermosciences Division
Download or read book Advances in Three-dimensional Turbulent Boundary Layers with Emphasis on the Wall-layer Regions written by Stanford University. Thermosciences Division. Thermosciences Division and published by . This book was released on 1994 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
