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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 : 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 : 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:
Author : Earl Withycombe
Publisher :
ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.:/5 (349 download)
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:
Author : J. D. Jacob
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (1 download)
Download or read book Experimental Study of Complex Vortex Interactions in the Wake of High Aspect Ratio Wings written by J. D. Jacob and published by . This book was released on 1997 with total page 40 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:
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:
Author :
Publisher :
ISBN 13 :
Total Pages : 704 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 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 : AMIR HOSSEIN HIRSA
Publisher :
ISBN 13 :
Total Pages : 148 pages
Book Rating : 4.:/5 (687 download)
Download or read book AN EXPERIMENTAL INVESTIGATION OF VORTEX PAIR INTERACTION WITH A CLEAN OR CONTAMINATED FREE SURFACE. written by AMIR HOSSEIN HIRSA and published by . This book was released on 1990 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: trajectory of the original vortex pair, causing them to rebound from the free surface. The effect of surface contamination was studied by adding known amounts of an insoluble surfactant to the free surface. Surface depressions, termed scars, were observed above the primary vortices as well as the secondary vortices, although in the case of the secondary vortices the depression was much greater.
Author :
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (317 download)
Download or read book An Experimental Investigation of the Parallel Blade-vortex Interaction written by and published by . This book was released on 1984 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Sheldon Green
Publisher : Springer Science & Business Media
ISBN 13 : 940110249X
Total Pages : 905 pages
Book Rating : 4.4/5 (11 download)
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.
Author : R. K. Takahashi
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (317 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:
Author : F. T Gilliam (Jr)
Publisher :
ISBN 13 :
Total Pages : 150 pages
Book Rating : 4.:/5 (227 download)
Download or read book An Investigation of the Effects of Discrete Wing Tip Jets on Wake Vortex Roll Up written by F. T Gilliam (Jr) and published by . This book was released on 1983 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: A water tunnel experiment and a computational flow field model show that discrete wing tip jets can strongly affect the roll up of the wing tip vortex and apparently decrease its rolled up strength at moderate levels of blowing. The key factor in vortex alleviation was the extent of the local flow interactions between the discrete jets and the developing wing tip vortex. Vortex trajectory in both the spanwise and vertical directions was influenced by the jets. An outboard shift of the wing tip vortex indicated that discrete wing tip jets may be able to produce improved wing aerodynamics during cruise flight. The counterrotating pair of vortices generated by a jet in a cross flow were clearly seen in the water tunnel and appeared to be very effective in reducing the intensity of the wing vortex system. Two types of periodic secondary vortices were also observed in the water tunnel for heavy jet blowing. These were spin-off vortices which periodically developed in the rolling up tip vortex but rapidly spun outboard and above the wing; and entrained vortices which was a set of periodic vortices laterally connecting the wing tip vortex to the vortices embedded in the jet. These secondary vortices are oriented such that they will greatly accelerate the spreading of wake vorticity through the vortex stretching term of the Helmholtz equation. This influence was confirmed in the water tunnel tests.
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:
Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (946 download)
Download or read book Experimental Investigation of Vortex-Tail Interaction on a 76/40 Degree Double-Delta Wing written by and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation was conducted to quantify the vortex-tail interaction on a 76/40 degree double delta wing model. The effects of different fillets at the wing/strake juncture, tail span wise positions, and angles of attack were evaluated. The vertical tails were instrumented with 28 fast response pressure transducers. Pressure time histories and frequency power spectral densities were analyzed for 35 configurations. Angle of attack was varied from -2 to 40 degrees, tunnel dynamic pressure was 26.74 psf and Reynolds number was 1.3 million. The results show a strong dependence on fillet geometry, tail position, transducer measurement location, and angle of attack on the magnitude and frequency of the tail response to the vortex forcing. In addition, a low frequency pulse was found that contained tremendous energy.
Author : Samson Pinto
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (129 download)
Download or read book Investigation of Ground Effect on the Wingtip Vortices Generated Behind a Swept and Tapered Wing written by Samson Pinto and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "An experimental study of the effect of ground proximity on wingtip vortices has been conducted for swept and tapered wing with NACA 0015 profile over a stationary flat surface in a subsonic wind tunnel. The spatial growth and development of the vortex system generated by the swept and tapered wing with and without winglet arrangement have also been studied. It has been noted that with the reduction in ground proximity, the vortex system moved outward along the spanwise direction by 20% of the wingspan, and it moved closer to the ground. In close ground proximity, vortex rebound occurred due to a lack of space for movement of the vortex. For ground proximity of 15% root chord, a co-rotating ground vortex has been observed, and at 5% of root chord, a counter-rotating secondary vortex has been noticed. The interaction of these different vortices has led to the change of the shape of the entire vortex system.The calculation of lift-induced drag has also been computed using vw-crossflow measurements in the near wake region. It has been observed that the lift-induced drag decreases with reducing ground distance. At ground proximity of 5% root chord distance, a 20% decrease in lift-induced drag is seen compared to lift-induced drag outside ground effect. Also, with the addition of a 90° winglet, an average decrease of 5% lift-induced drag is seen when compared to the wing without a winglet. The lift coefficient has been estimated using the circulation of the vortex system both inside and outside ground effect. It has been noted that there is a 53% increase in the coefficient of lift at 5% ground proximity compared to the coefficient of lift outside ground effect. It has been found that the trend of coefficient of lift versus the ground distance matches the trend of other wing planforms and increases exponentially as the ground proximity decreases below 10% root chord. It has been concluded that the swept wing with a 90° winglet arrangement has been found to outperform all other arrangements"--
