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Author : Kyle P. Judd
Publisher :
ISBN 13 :
Total Pages : 107 pages
Book Rating : 4.:/5 (115 download)
Download or read book Theoretical and Experimental Investigation of Vortex Breakdown in Diverging Streamtubes written by Kyle P. Judd and published by . This book was released on 1999 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theoretical and Experimental Investigation of Vortex Breakdown Final Technical Report 1 June 85 written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Luis E. Rodrigues Castro
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (64 download)
Download or read book An Experimental Investigation of the Vortex Breakdown Phenomenon in a Diverging Tube written by Luis E. Rodrigues Castro and published by . This book was released on 1969 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Charles Lowry Robertson
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (64 download)
Download or read book An Experimental Investigation of the Vortex Breakdown Phenomenon in a Diverging Tube written by Charles Lowry Robertson and published by . This book was released on 1971 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Turgut Sarpkaya
Publisher :
ISBN 13 :
Total Pages : 66 pages
Book Rating : 4.:/5 (227 download)
Download or read book An Experimental Investigation of the Vortex-breakdown Phenomenon written by Turgut Sarpkaya and published by . This book was released on 1970 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: The results of an experimental investigation of the characteristics of stationary and travelling vortex breakdowns in swirling flow in a diverging cylindrical tube are presented and discussed. Basically, three types of vortex breakdown were observed, viz., double helix, spiral, and axisymmetric breakdown. The type and location of the stationary breakdowns were found to be dependent upon the Reynolds and circulation numbers of the flow. The breakdown bubble responded to gradual and abrupt changes in the upstream and downstream flow conditions in a manner analogous to the hydraulic jump in open-channel flow. The observations reported and the evidence presented revealed unmistakably that the vortex breakdown is a finite transition from a uniform state of swirling flow (supercritical) to one (subcritical) featuring a large standing wave, followed by standing wavelets, of finite amplitude. (Author).
Author : Jon Ronald Fantin
Publisher :
ISBN 13 :
Total Pages : 47 pages
Book Rating : 4.:/5 (227 download)
Download or read book An Investigation of the Characteristics of Swirling Flow in a Diverging Tube written by Jon Ronald Fantin and published by . This book was released on 1968 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effect of an imposed pressure gradient on the core of a vortex is examined both theoretically and experimentally. The test apparatus consisted of a vortex chamber and a diverging tube. The swirling flow was generated by means of adjustable vanes at the periphery of the vortex chamber and by introducing varying amounts of air. Pressure distributions were obtained along the wall of the tube for various flows and vane settings. In addition, the core of the vortex was photographed by introducing smoke at the axis of the vortex chamber. The theoretical and experimental results show the existence of standing waves arising from the vortex breakdown and the existence of critical conditions, depending on the ratio of the rotational and longitudinal velocity components, beyond which drastic changes of flow structure must occur. The theoretical results were found to be closely related to the observed phenomena. (Author).
Author : Ronald J. Hugo
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
Download or read book An Experimental Investigation of Vortex Breakdown in Multiphase Pipe Flow written by Ronald J. Hugo and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ken Chi Kien Cheung
Publisher :
ISBN 13 :
Total Pages : 164 pages
Book Rating : 4.:/5 (282 download)
Download or read book A Theoretical and Experimental Study of Vortex Breakdown written by Ken Chi Kien Cheung and published by . This book was released on 1993 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Francis G. Novak
Publisher :
ISBN 13 : 9781423557371
Total Pages : 336 pages
Book Rating : 4.5/5 (573 download)
Download or read book An Experimental Investigation of Vortex Breakdown in Tubes at High Reynolds Numbers written by Francis G. Novak and published by . This book was released on 1998-09-01 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis deals with non-cavitating swirling flows with vortex breakdown in various tubes. Phenomenological and quantitative investigations were carried out at Reynolds numbers as high as 300,000. It was shown that a high Re(D) vortex transitions to its new state (breaks down) via a rapidly spinning spiral form, as demonstrated with 4,000 frame per second video, short exposure time (6 ns) imaging, and Digital Particle Image Velocimetry. Of the known types, the spiral emerges as the fundamental breakdown form and the axisymmetric bubble may now be regarded as a relatively low Re(D) occurrence that is bypassed at sufficiently high Re(D). Some new phenomena were observed at high Re(D): Extremely rapid spiral rotation (over 1,000 revolutions per second), core bifurcation, and changes in the sense of the spiral windings. Familiar features of breakdowns, such as the transition from a jet-like to wake-like axial velocity profile and the rapidly expanding vortex core, were observed in extensive time averaged velocity and turbulence results ascertained with Laser Doppler Velocimetry. However, a mean stagnation point and recirculation were absent in the highest Re(D) flow. The core meandering and stagnation point darting in the turbulent flow field were quantified and discussed in detail.
Author : Sammy Khalil
Publisher :
ISBN 13 :
Total Pages : 598 pages
Book Rating : 4.:/5 (271 download)
Download or read book An Experimental Investigation Into Vortex Breakdown and Vortex Breakdown Control written by Sammy Khalil and published by . This book was released on 2006 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gale Edward Treiber
Publisher :
ISBN 13 :
Total Pages : 74 pages
Book Rating : 4.:/5 (227 download)
Download or read book An Experimental Investigation of the Effect of Adverse Pressure Gradient on Vortex Breakdown written by Gale Edward Treiber and published by . This book was released on 1973 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: The results of an experimental investigation of the effect of adverse pressure gradient on the vortex breakdown phenomenon in a diverging tube are presented. Adverse pressure gradient was found to be as significant in determining the breakdown position as were the previously known parameters of Reynolds and circulation numbers. An approximate momentum analysis for predicting the vortex breakdown position was carried out which appears to hold promise as a breakdown predictor. (Modified author abstract).
Author : Brad R. Thompson
Publisher :
ISBN 13 : 9781109912258
Total Pages : 271 pages
Book Rating : 4.9/5 (122 download)
Download or read book Experimental Investigation of the Self-induction Theory of Vortex Breakdown and New Observations in the Transient Development of a Delta Wing Leading Edge Vortex written by Brad R. Thompson and published by . This book was released on 2007 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: The transient development of the leading edge vortex of a 65-deg sweep delta wing is investigated in water tunnel experiments using flow visualization and particle image velocimetry (PIV) measurements. The experiments were conducted at root chord Reynolds numbers from 0 to 3x10 4. The transient results provide experimental evidence supporting the self-induction theory of vortex breakdown. A core radius based circulation overshoot is discovered and attributed to transient development of the vortex core. The transient leading edge vortex core development indicates an initial conical vortex core along the axial direction that transitions to a cylindrical axial core. A passive device that asymmetrically extends the vortex breakdown location is discovered and the mechanisms describing the extension are proposed.
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 : D. L. I. Kirkpatrick
Publisher :
ISBN 13 :
Total Pages : 21 pages
Book Rating : 4.:/5 (864 download)
Download or read book Experimental investigation of the breakdown of a vortex in a tube written by D. L. I. Kirkpatrick and published by . This book was released on 1965 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Aeronautical Research Council
Publisher :
ISBN 13 :
Total Pages : 9 pages
Book Rating : 4.:/5 (32 download)
Download or read book Experimental Investigation of the Breakdown of a Vortex in a Tube written by Aeronautical Research Council and published by . This book was released on 1965 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alain Pelletier
Publisher :
ISBN 13 :
Total Pages : 178 pages
Book Rating : 4.:/5 (36 download)
Download or read book An Experimental Investigation of Vortex Breakdown on Slender Delta-wing Planforms written by Alain Pelletier and published by . This book was released on 1994 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : D. J. Craze
Publisher :
ISBN 13 :
Total Pages : 468 pages
Book Rating : 4.:/5 (221 download)
Download or read book Energy-separation in the Vortex Tube written by D. J. Craze and published by . This book was released on 1968 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
