Experimental Study Of Vortex Flow In A Cylinder
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Experimental Study Of Vortex Flow In A Cylinder
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Author : Edward Joseph Palanek (CAPT, USAF.)
language : en
Publisher:
Release Date : 1966
Experimental Study Of Vortex Flow In A Cylinder written by Edward Joseph Palanek (CAPT, USAF.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with Cylinders categories.
Experimental Study Of Vortex Flow In A Cylinder
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Author : Edward Joseph Palanek
language : en
Publisher:
Release Date : 1966
Experimental Study Of Vortex Flow In A Cylinder written by Edward Joseph Palanek and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with Vortex generators categories.
The major objectives of the study were to determine the effects of variable injection angle and mass flow on heat transfer and flow characteristics in a vortex field confined in a centrally heated cylindrical tube, and to evaluate hot-wire probe techniques in similar conditions. Maximum vortex strength and heat transfer were generated at a 35 degree injection angle and produced a film heat transfer coefficient 2.3 times greater than that for axial flow at the same mass flow. Hot-wire results correlated reasonably well in similar flow conditions and indicated future possibilities in arc-stabilization studies. (Author).
Experimental Study Of Vortex Breakdown In A Cylindrical Swirling Flow
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Author : José L. Stevens
language : en
Publisher:
Release Date : 1996
Experimental Study Of Vortex Breakdown In A Cylindrical Swirling Flow written by José L. Stevens and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Aerodynamics categories.
An Experimental Study Of Vortex Flow And Turbulence In Concentric And Eccentric Annuli
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Author : J. H. Vohr
language : en
Publisher:
Release Date : 1964
An Experimental Study Of Vortex Flow And Turbulence In Concentric And Eccentric Annuli written by J. H. Vohr and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Taylor vortices categories.
Results are presented for an experimental study of Taylor vortices and turbulence in the flow between a rotating inner cylinder and both concentric and eccentric stationary outer cylinders. The results include: 1). measurement of the critical speed for onset of Taylor vortices as function of the eccentricity of the cylinders, 2). visual study of the flow up to a Reynolds number of 40,000, 3). measurement of the friction factor for the flow up to a Reynolds number of number of 40,000, 4). study of the effect of axial flow on the critical speed for onset of Taylor vortices. 5). preparation of design charts for calculating friction loss in concentric and eccentric journal bearings, operating in super-laminar flow regime.--Author.
Experimental Study Of Vortex Breakdown In A Cylindrical Swirling Flow
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-07-17
Experimental Study Of Vortex Breakdown In A Cylindrical Swirling Flow written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-17 with categories.
The stability of a steady, vortical flow in a cylindrical container with one rotating endwall has been experimentally examined to gain insight into the process of vortex breakdowwn. The dynamics of the flow are governed by the Reynolds number (Re) and the aspect ratio of the cylinder. Re is given by Omega R(sup 2)/nu, where Omega is the speed of rotation of the endwall, R is the cylinder radius, and nu is the kinematic viscosity of the fluid filling the cylinder. The aspect ratio is H/R, where H is the height of the cylinder. Numerical simulation studies disagree whether or not the steady breakdown is stable beyond a critical Reynolds number, Re(sub c). Previous experimental researches have considered the steady and unsteady flows near Re(sub c), but have not explored the stability of the steady breakdown structures beyond this value. In this investigation, laser induced fluorescence was utilized to observe both steady and unsteady vortex breakdown at a fixed H/R of 2.5 with Re varying around Re(sub c). When the Re of a steady flow was slowly increased beyond Re(sub c), the breakdown structure remained steady even though unsteadiness was possible. In addition, a number of hysteresis events involving the oscillation periods of the unsteady flow were noted. The results show that both steady and unsteady vortex breakdown occur for a limited range of Re above Re(sub c). Also, with increasing Re, complex flow transformations take place that alter the period at which the unsteady flow oscillates. Stevens, J. L. and Celik, Z. Z. and Cantwell, B. J. and Lopez, J. M. Ames Research Center VORTEX BREAKDOWN; SWIRLING; FLOW STABILITY; STEADY FLOW; INTERNAL FLOW; REYNOLDS NUMBER; CYLINDRICAL BODIES; ASPECT RATIO; AXISYMMETRIC FLOW; FLOW VISUALIZATION; OSCILLATIONS; PERTURBATION; BUBBLES; UNSTEADY FLOW; VISCOSITY; LASER INDUCED FLUORESCENCE...
An Experimental Study Of Vortex Flow And Turbulence In Concentric And Eccentric Annuli
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Author : J. H. Vohr
language : en
Publisher:
Release Date : 1964
An Experimental Study Of Vortex Flow And Turbulence In Concentric And Eccentric Annuli written by J. H. Vohr and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Taylor vortices categories.
Results are presented for an experimental study of Taylor vortices and turbulence in the flow between a rotating inner cylinder and both concentric and eccentric stationary outer cylinders. The results include: 1). measurement of the critical speed for onset of Taylor vortices as function of the eccentricity of the cylinders, 2). visual study of the flow up to a Reynolds number of 40,000, 3). measurement of the friction factor for the flow up to a Reynolds number of number of 40,000, 4). study of the effect of axial flow on the critical speed for onset of Taylor vortices. 5). preparation of design charts for calculating friction loss in concentric and eccentric journal bearings, operating in super-laminar flow regime.--Author.
Experimental Study Of Superlaminar Flow Between Nonconcentric Rotating Cylinders
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Author : John Vohr
language : en
Publisher:
Release Date : 1967
Experimental Study Of Superlaminar Flow Between Nonconcentric Rotating Cylinders written by John Vohr and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Taylor vortices categories.
An Experimental Study Of Vortex Flow
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Author : Allen Scott Neuls
language : en
Publisher:
Release Date : 1971
An Experimental Study Of Vortex Flow written by Allen Scott Neuls and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Vortex-motion categories.
An Experimental Study Of Vortex Flow
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Author : George D. Moore (CAPT, USAF.)
language : en
Publisher:
Release Date : 1959
An Experimental Study Of Vortex Flow written by George D. Moore (CAPT, USAF.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1959 with Fluid dynamics categories.
An Experimental Study Of Flow Behind A Linearly Tapered Cylinder At Low Reynolds Number
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Author : Paul Sefton Piccirillo
language : en
Publisher:
Release Date : 1990
An Experimental Study Of Flow Behind A Linearly Tapered Cylinder At Low Reynolds Number written by Paul Sefton Piccirillo and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with categories.