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Experimental Study Of The Structure Of A Wingtip Vortex
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Author :National Aeronautics and Space Adm Nasa Publisher :Independently Published ISBN 13 :9781723837005 Total Pages :64 pages Book Rating :4.8/5 (37 download)
Book Synopsis Experimental Study of the Structure of a Wingtip Vortex by : National Aeronautics and Space Adm Nasa
Download or read book Experimental Study of the Structure of a Wingtip Vortex written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-09-19 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: A complete look at the near-field development and subsequent role-up of a wingtip vortex from a NACA 0015 wing section is investigated. Two separate but equally important surveys of the vortex structure in the region adjacent to the wingtip and approximately one chord length downstream of the trailing edge are performed. The two surveys provide qualitative flow-visualization an quantitative velocity measurement data. The near-field development and subsequent role-up of the vortex structures is strongly influenced by the angle-of-attack and the end-cap treatment of the wing section. The velocity field near the wingtip of the NACA 0015 wing section was measured with a triple-sensor hot wire probe and compared to flow visualization images produced with titanium tetrachloride smoke injection and laser illumination. The flat end-cap results indicate the formation of multiple, relatively strong vortex structures as opposed to the formation of a single vortex produced with the round end-cap. The multiple vortices generated by the flat end-cap are seen to rotate around a common ce te in a helical pattern until they eventually merge into a single vortex. Compared to a non-dimensional loading parameter, the results of the velocity and flow visualization data shows a "jetlike" axial velocity profile for loading parameter values on the order of 0.1 and a "wakelike" profile for much lower loading parameter values.Anderson, Elgin A. and Wright, Christopher T.Langley Research CenterWING TIPS; VORTICES; SUBSONIC WIND TUNNELS; AERODYNAMIC CONFIGURATIONS; AERODYNAMIC CHARACTERISTICS; FLOW VISUALIZATION; ANGLE OF ATTACK; TRAILING EDGES; VELOCITY DISTRIBUTION
Book Synopsis Experimental Study of the Structure of Thw Wing-tip Vortex by : E. A. Anderson
Download or read book Experimental Study of the Structure of Thw Wing-tip Vortex written by E. A. Anderson and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Study on the Near Field Structure of Wing-tip Vortex by : Sejong Oh
Download or read book Experimental Study on the Near Field Structure of Wing-tip Vortex written by Sejong Oh and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Study of a Wing Tip Vortex with Tip Blowing by : Jason R. Bettle
Download or read book Experimental Study of a Wing Tip Vortex with Tip Blowing written by Jason R. Bettle and published by . This book was released on 2004 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental Study of Axial Flow in Wing Tip Vortices by : D. H. Thompson
Download or read book An Experimental Study of Axial Flow in Wing Tip Vortices written by D. H. Thompson and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of the Structure of Vortices in Simple Cylindrical Vortex Chambers by : Coleman DuP. Donaldson
Download or read book Experimental Investigation of the Structure of Vortices in Simple Cylindrical Vortex Chambers written by Coleman DuP. Donaldson and published by . This book was released on 1962 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Study of Vortex Structure in a Plane Mixing Layer by : Sanjay Vinayak Sherikar
Download or read book Experimental Study of Vortex Structure in a Plane Mixing Layer written by Sanjay Vinayak Sherikar and published by . This book was released on 1987 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wingtip Vortex Decay by : Earl Withycombe
Download or read book Wingtip Vortex Decay written by Earl Withycombe and published by . This book was released on 1970 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental Survey of a Wing-tip Vortex in a Contracted Flow by : Theodore J. Garbeff
Download or read book An Experimental Survey of a Wing-tip Vortex in a Contracted Flow written by Theodore J. Garbeff and published by . This book was released on 2008 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experiment to detail the evolution of wing-tip vortex shed into a favorable pressure gradient. In this analysis, a favorable pressure gradient was defined as a positive rate of change of pressure with respect to stream-wise coordinate. The favorable pressure gradient was introduced by a mild contraction in the tunnel test section. The contraction was designed using a high order panel method know as Panair. The contraction was installed within the Cal Poly 3 x 4 ft. wind tunnel test section. The contraction was 10 chord lengths long; the trailing edge of wing-tip used to generate the vortex was located 5.5 chord lengths upstream from the contraction inlet. The tip vortex was assumed to be fully developed at the point of entry. A constant cross section duct, 6 chords in length, was locate downstream of the contraction section. Four planes of data were taken at 5.5, 8.0, 10.5, and 13 chord lengths downstream of the trailing edge of the wing tip vortex generator. Two surveys at each data plane were taken with end-flow miniature crossed hot-wire probes. The two data sets were combined to resolve time-averaged three-component flow. The vorticity, azimuthal velocity, and circulation of the vortex will be characterized. The experimental results were compared to the results from previous experiments, as well as to an approximate analytical solution to a vortex in stretched flow.
Book Synopsis Numerical and Experimental Investigation of the Mean and Turbulent Characteristics of a Wing-tip Vortex in the Near Field by :
Download or read book Numerical and Experimental Investigation of the Mean and Turbulent Characteristics of a Wing-tip Vortex in the Near Field written by and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental Study of Taylor-Goertler Vortices in a Curved Rectangular Channel by : David Lee Flentie
Download or read book An Experimental Study of Taylor-Goertler Vortices in a Curved Rectangular Channel written by David Lee Flentie and published by . This book was released on 1975 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: A rectangular cross section channel, designed and built by R. McKee to create the laminar secondary Taylor-Goertler vortex flow, was modified to expand the experimental investigation of the vortex flow. The modification allowed the hot wire anemometer, used to obtain velocity profiles, to be moved in both the radial and transverse direction. This additional freedom permitted a rectangular cross section of the flow to be investigated. It was concluded that the onset of Taylor-Goertler vortices was in agreement with existing information, that the intensity of the vortices increased with increasing flow rate, and turbulent fluctuations grew within the vortex structure.
Book Synopsis An Experimental Investigation of Interacting Wing-tip Vortex Pairs by : Jeffrey S. Zsoldos
Download or read book An Experimental Investigation of Interacting Wing-tip Vortex Pairs written by Jeffrey S. Zsoldos and published by . This book was released on 1992 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Study of Vortex Breakdown in a Cylindrical, Swirling Flow by : José L. Stevens
Download or read book Experimental Study of Vortex Breakdown in a Cylindrical, Swirling Flow written by José L. Stevens and published by . This book was released on 1996 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fluid Vortices written by Sheldon Green and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 905 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluid Vortices is a comprehensive, up-to-date, research-level overview covering all salient flows in which fluid vortices play a significant role. The various chapters have been written by specialists from North America, Europe and Asia, making for unsurpassed depth and breadth of coverage. Topics addressed include fundamental vortex flows (mixing layer vortices, vortex rings, wake vortices, vortex stability, etc.), industrial and environmental vortex flows (aero-propulsion system vortices, vortex-structure interaction, atmospheric vortices, computational methods with vortices, etc.), and multiphase vortex flows (free-surface effects, vortex cavitation, and bubble and particle interactions with vortices). The book can also be recommended as an advanced graduate-level supplementary textbook. The first nine chapters of the book are suitable for a one-term course; chapters 10--19 form the basis for a second one-term course.
Book Synopsis Experimental Investigation of the Inducement of Vortex Breakdown in a Wing-tip Vortex by : Christian Fernando Pinzón
Download or read book Experimental Investigation of the Inducement of Vortex Breakdown in a Wing-tip Vortex written by Christian Fernando Pinzón and published by . This book was released on 2004 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental Study of Tip Vortex Roll-up of an Oscillating Wing by : Jo-Won Chang
Download or read book An Experimental Study of Tip Vortex Roll-up of an Oscillating Wing written by Jo-Won Chang and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of Flap Tip and Wing Tip Vortex Interactions by : Linda K. Kliment
Download or read book Experimental Investigation of Flap Tip and Wing Tip Vortex Interactions written by Linda K. Kliment and published by . This book was released on 2002 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
