Experimental And Numerical Investigation Of Flow Past A Freely Rotatable Square Cylinder
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Experimental And Numerical Investigation Of Flow Past A Freely Rotatable Square Cylinder
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Author : Tarek G. Zaki
language : en
Publisher:
Release Date : 1991
Experimental And Numerical Investigation Of Flow Past A Freely Rotatable Square Cylinder written by Tarek G. Zaki and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.
An Experimental Investigation Of The Flow Past A Finite Circular Cylinder At A Low Subcritical Reynolds Number
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Author : M. Budair
language : en
Publisher:
Release Date : 1981
An Experimental Investigation Of The Flow Past A Finite Circular Cylinder At A Low Subcritical Reynolds Number written by M. Budair and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Boundary layer control categories.
Experimental And Numerical Investigation Of Three Equispaced Cylinders In Cross Flow
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Author : Manpreet Bansal
language : en
Publisher:
Release Date : 2014
Experimental And Numerical Investigation Of Three Equispaced Cylinders In Cross Flow written by Manpreet Bansal and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
Flow around a cluster of three equally spaced cylinders with a spacing ratio of P/D = 1.35 was studied experimentally and numerically. The main focus of this investigation is the effect of cluster orientation on flow characteristics.
Experimental And Numerical Investigations Of The Flow Development Over Circular Cylinders With Stepwise Discontinuities In Diameter
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Author : Christopher R. Morton
language : en
Publisher:
Release Date : 2010
Experimental And Numerical Investigations Of The Flow Development Over Circular Cylinders With Stepwise Discontinuities In Diameter written by Christopher R. Morton and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.
Flow past circular cylinders with stepwise discontinuities in diameter was investigated experimentally and numerically for the diameter ratio D/d = 2 and three Reynolds numbers, Re = 150, 300, and 1050. The investigation was focused on the vortex shedding phenomena occurring in the wake of the cylinders. In the first series of experimental and numerical studies, the flow development past a single step cylinder was investigated. The single step cylinder model is comprised of a small diameter cylinder (d) attached coaxially to a large diameter cylinder (D). The results show that three distinct spanwise vortex cells form in the step cylinder wake: a single vortex shedding cell in the wake of the small cylinder (the S-cell) and two vortex shedding cells in the wake of the large cylinder, one in the region downstream of the step (the N-cell) and the other away from the step (the L-cell). Due to the differences in vortex shedding frequencies between the three cells, complex vortex connections occur in two vortex-interaction regions located between the adjacent cells. The region at the boundary between the S-cell and the N-cell is relatively narrow and its spanwise extent does not fluctuate significantly. In this region, vortex dislocations manifested as half-loop connections between two S-cell vortices of opposite sign. In contrast, the region at the boundary between the N-cell and the L-cell exhibits a transient behavior, with large scale vortex dislocations causing cyclic variation in the extent of N-cell vortices. For Re = 300 and 1050, small scale streamwise vortices forming in the wake complicate the vortex dynamics within the adjacent S-cell and L-cell. There is no significant Reynolds number effect on the average spanwise extent of the vortex cells and the two transition regions between neighboring cells. Finally, formation of N-cell vortices is linked to downwash fluctuations near the step. The flow development past a dual step cylinder was studied experimentally for Re = 1050. The dual step cylinder model is comprised of a small diameter cylinder (d) and a large diameter cylinder (D) mounted at the mid-span of the small cylinder. The experiments were completed for a range of large cylinder aspect ratios 0.2 ≤ L/D ≤ 17. The flow development is highly dependent on the aspect ratio of the large cylinder, L/D. The results identify four distinct flow regimes: (i) for L/D = 17, three vortex shedding cells form in the wake of the large cylinder, one central cell and two cells of lower frequency extending over about 4.5D from the large cylinder ends, (ii) for 7
Hydrodynamics Around Cylindrical Structures
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Author : Jorgen Fredsoe
language : en
Publisher: World Scientific
Release Date : 1997-03-17
Hydrodynamics Around Cylindrical Structures written by Jorgen Fredsoe and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997-03-17 with categories.
This book discusses the subject of wave/current flow around a cylinder, the forces induced on the cylinder by the flow, and the vibration pattern of slender structures in a marine environment.The primary aim of the book is to describe the flow pattern and the resulting load which develops when waves or current meet a cylinder. Attention is paid to the special case of a circular cylinder. The development in the forces is related to the various flow patterns and is discussed in detail. Regular as well as irregular waves are considered, and special cases like wall proximities (pipelines) are also investigated.The book is intended for MSc students with some experience in basic fluid mechanics and for PhD students.
Experimental And Numerical Investigations Of The Flow Development Over Cylinders With Stepwise Discontinuities In Diameter
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Author : Christopher R. Morton
language : en
Publisher:
Release Date : 2010
Experimental And Numerical Investigations Of The Flow Development Over Cylinders With Stepwise Discontinuities In Diameter written by Christopher R. Morton and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.
Flow past circular cylinders with stepwise discontinuities in diameter was investigated experimentally and numerically for the diameter ratio D/d = 2 and three Reynolds numbers, Re = 150, 300, and 1050. The investigation was focused on the vortex shedding phenomena occurring in the wake of the cylinders. In the first series of experimental and numerical studies, the flow development past a single step cylinder was investigated. The single step cylinder model is comprised of a small diameter cylinder (d) attached coaxially to a large diameter cylinder (D). The results show that three distinct spanwise vortex cells form in the step cylinder wake: a single vortex shedding cell in the wake of the small cylinder (the S-cell) and two vortex shedding cells in the wake of the large cylinder, one in the region downstream of the step (the N-cell) and the other away from the step (the L-cell). Due to the differences in vortex shedding frequencies between the three cells, complex vortex connections occur in two vortex-interaction regions located between the adjacent cells. The region at the boundary between the S-cell and the N-cell is relatively narrow and its spanwise extent does not fluctuate significantly. In this region, vortex dislocations manifested as half-loop connections between two S-cell vortices of opposite sign. In contrast, the region at the boundary between the N-cell and the L-cell exhibits a transient behavior, with large scale vortex dislocations causing cyclic variation in the extent of N-cell vortices. For Re = 300 and 1050, small scale streamwise vortices forming in the wake complicate the vortex dynamics within the adjacent S-cell and L-cell. There is no significant Reynolds number effect on the average spanwise extent of the vortex cells and the two transition regions between neighboring cells. Finally, formation of N-cell vortices is linked to downwash fluctuations near the step. The flow development past a dual step cylinder was studied experimentally for Re = 1050. The dual step cylinder model is comprised of a small diameter cylinder (d) and a large diameter cylinder (D) mounted at the mid-span of the small cylinder. The experiments were completed for a range of large cylinder aspect ratios 0.2 [les] L/D [les] 17. The flow development is highly dependent on the aspect ratio of the large cylinder, L/D. The results identify four distinct flow regimes: (i) for L/D = 17, three vortex shedding cells form in the wake of the large cylinder, one central cell and two cells of lower frequency extending over about 4.5D from the large cylinder ends, (ii) for 7
Applied Mechanics Reviews
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Author :
language : en
Publisher:
Release Date : 1948
Applied Mechanics Reviews written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1948 with Mechanics, Applied categories.
Numerical Experiments On The Flow Past A Circular Cylinder At Sub Critical Reynolds Number
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Author : Patrick Beaudan
language : en
Publisher:
Release Date : 1994
Numerical Experiments On The Flow Past A Circular Cylinder At Sub Critical Reynolds Number written by Patrick Beaudan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Cylinders categories.
Numerical And Experimental Investigation Of Flow Past A Sphere Up To A Reynolds Number Of 300
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Author : Timothy A. Johnson
language : en
Publisher:
Release Date : 1996
Numerical And Experimental Investigation Of Flow Past A Sphere Up To A Reynolds Number Of 300 written by Timothy A. Johnson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.
Flow Of Viscoelastic Fluids Through Banks Of Cylinders
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Author : William H. Hartt
language : en
Publisher:
Release Date : 1995
Flow Of Viscoelastic Fluids Through Banks Of Cylinders written by William H. Hartt and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with categories.