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Author : Jason R. Bettle
Publisher :
ISBN 13 :
Total Pages : 354 pages
Book Rating : 4.:/5 (27 download)
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:
Author : E. A. Anderson
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
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:
Author : Sejong Oh
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
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:
Author : D. H. Thompson
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
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:
Author : National Aeronautics and Space Adm Nasa
Publisher : Independently Published
ISBN 13 : 9781723837005
Total Pages : 64 pages
Book Rating : 4.8/5 (37 download)
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
Author : Jo-Won Chang
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
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:
Author : Hock-Bin Lim
Publisher :
ISBN 13 :
Total Pages : 162 pages
Book Rating : 4.:/5 (317 download)
Download or read book Numerical Study of the Trailing Vortex of a Wing with Wing-tip Blowing written by Hock-Bin Lim and published by . This book was released on 1994 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Theodore J. Garbeff
Publisher :
ISBN 13 :
Total Pages : 194 pages
Book Rating : 4.:/5 (259 download)
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.
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781723239106
Total Pages : 160 pages
Book Rating : 4.2/5 (391 download)
Download or read book Numerical Study of the Trailing Vortex of a Wing with Wing-Tip Blowing written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-18 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trailing vortices generated by lifting surfaces such as helicopter rotor blades, ship propellers, fixed wings, and canard control surfaces are known to be the source of noise, vibration, cavitation, degradation of performance, and other hazardous problems. Controlling these vortices is, therefore, of practical interest. The formation and behavior of the trailing vortices are studied in the present research. In addition, wing-tip blowing concepts employing axial blowing and spanwise blowing are studied to determine their effectiveness in controlling these vortices and their effects on the performance of the wing. The 3D, unsteady, thin-layer compressible Navier-Stokes equations are solved using a time-accurate, implicit, finite difference scheme that employs LU-ADI factorization. The wing-tip blowing is simulated using the actuator plane concept, thereby, not requiring resolution of the jet slot geometry. Furthermore, the solution blanking feature of the chimera scheme is used to simplify the parametric study procedure for the wing-tip blowing. Computed results are shown to compare favorably with experimental measurements. It is found that axial wing-tip blowing, although delaying the rolling-up of the trailing vortices and the near-field behavior of the flowfield, does not dissipate the circulation strength of the trailing vortex farther downstream. Spanwise wing-tip blowing has the effect of displacing the trailing vortices outboard and upward. The increased 'wing-span' due to the spanwise wing-tip blowing has the effect of lift augmentation on the wing and the strengthening of the trailing vortices. Secondary trailing vortices are created at high spanwise wing-tip blowing intensities. Lim, Hock-Bin Unspecified Center BLOWING; COMPUTERIZED SIMULATION; CONTROL SURFACES; FINITE DIFFERENCE THEORY; LIFT AUGMENTATION; NAVIER-STOKES EQUATION; ROTARY WINGS; ROTOR BLADES; SPANWISE BLOWING; VORTICES; WINGS; CANARD CONFIGURATIONS; CAVITATION FLOW; DIFFERENCE EQUATIONS; DISSI...
Author : Jeffrey S. Zsoldos
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (264 download)
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:
Author : Christian Fernando Pinzón
Publisher :
ISBN 13 :
Total Pages : 228 pages
Book Rating : 4.:/5 (126 download)
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:
Author : Jeffrey S. Zsoldos
Publisher :
ISBN 13 :
Total Pages : 814 pages
Book Rating : 4.:/5 (264 download)
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 814 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 602 pages
Book Rating : 4.:/5 (3 download)
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.
Author : Linda K. Kliment
Publisher :
ISBN 13 :
Total Pages : 138 pages
Book Rating : 4.:/5 (529 download)
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:
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:
Download or read book Jolie Collection de tableaux des 3 ecoles, bronzes curiosités Dessins written by and published by . This book was released on 1833 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. K. Takahashi
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.F/5 ( download)
Download or read book Preliminary Study of a Wing-tip Vortex Using Laser Velocimetry written by R. K. Takahashi and published by . This book was released on 1987 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
