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An Investigation On Vortex Breakdown Phenomena In A Vertical Cylindrical Tube Journal Of King Abdulaziz University
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Book Synopsis An Investigation on Vortex Breakdown Phenomena in a Vertical Cylindrical Tube \\ Journal of King Abdulaziz University by : Nazih N. Bayomi
Download or read book An Investigation on Vortex Breakdown Phenomena in a Vertical Cylindrical Tube \\ Journal of King Abdulaziz University written by Nazih N. Bayomi and published by . This book was released on 2000 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental Investigation of the Vortex-breakdown Phenomenon by : Turgut Sarpkaya
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 0 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).
Book Synopsis An Experimental Investigation of the Vortex Breakdown Phenomenon in a Diverging Tube by : Luis E. Rodrigues Castro
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:
Book Synopsis An Experimental Investigation of the Vortex Breakdown Phenomenon in a Diverging Tube by : Charles Lowry Robertson
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:
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:
Book Synopsis An Experimental Investigation of Vortex Breakdown in Tubes at High Reynolds Numbers by : Francis G. Novak
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.
Book Synopsis An Experimental Investigation of the Effect of Adverse Pressure Gradient on Vortex Breakdown by : Gale Edward Treiber
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).
Book Synopsis On a Criterion for Vortex Breakdown by : R. E. Spall
Download or read book On a Criterion for Vortex Breakdown written by R. E. Spall and published by . This book was released on 1987 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Investigation of Vortex Breakdown from the Point of View of Hydrodynamic Stability by : Thinh Tien Nguyen
Download or read book An Investigation of Vortex Breakdown from the Point of View of Hydrodynamic Stability written by Thinh Tien Nguyen and published by . This book was released on 1980 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis On Vortex Breakdown and Instability by : S. N. Singh
Download or read book On Vortex Breakdown and Instability written by S. N. Singh and published by . This book was released on 1981 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: A literature survey on the vortex breakdown phenomenon is presented. Several theoretical and numerical models which have been proposed and applied to explain the experimental observations concerning vortex bursting are reviewed. Required parameters to perform the related stability analysis have been identified. Appropriate criteria where possible are cited to assist engineers in estimating occurrence of vortext bursting. A numerical scheme to compute and verify some of the results for incompressible inviscid unstable modes is programmed on the computer at WPAFB. It is suggested that the influence of adverse pressure gradient on the vortex breakdown be investigated in detail and results thus obtained be compared with experiments under appropriate conditions.
Book Synopsis An Experimental Investigation of Vortex Breakdown in Multiphase Pipe Flow by : Ronald J. Hugo
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:
Book Synopsis Analysis of the Vortex Breakdown Phenomenon by : H. B. Squire
Download or read book Analysis of the Vortex Breakdown Phenomenon written by H. B. Squire and published by . This book was released on 1960 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Solution to the Vortex Breakdown Phenomenon in a Trailing Line Vortex by : Andrew Hance Logan
Download or read book A Solution to the Vortex Breakdown Phenomenon in a Trailing Line Vortex written by Andrew Hance Logan and published by . This book was released on with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis of the Vortex Breakdown Phenomenon by : Christian H. Whiting
Download or read book Analysis of the Vortex Breakdown Phenomenon written by Christian H. Whiting and published by . This book was released on 1996 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of the Breakdown of a Vortex in a Tube by : Aeronautical Research Council
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:
Book Synopsis A Note on Professor Squire's Analysis of the Vortex Breakdown Phenomenon by : J. P. Jones
Download or read book A Note on Professor Squire's Analysis of the Vortex Breakdown Phenomenon written by J. P. Jones and published by . This book was released on 1960 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Corrigenda to the Explanation for the Vortex Breakdown Phenomenon by : T. Brooke Benjamin
Download or read book Corrigenda to the Explanation for the Vortex Breakdown Phenomenon written by T. Brooke Benjamin and published by . This book was released on 1961 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
