The Interaction Between Flexible Plates And Fluid In Two Dimensional Flow
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The Interaction Between Flexible Plates And Fluid In Two Dimensional Flow
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Author : Laibing Jia
language : en
Publisher: Springer
Release Date : 2014-06-23
The Interaction Between Flexible Plates And Fluid In Two Dimensional Flow written by Laibing Jia and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-06-23 with Technology & Engineering categories.
The fascinating rainbow colors we see in soap film not only delight us; they also help us understand the physical essence of nature. In this dissertation, the author presents his studies on the interactions between flexible bodies and ambient fluids, a topic reflected in nature, in everyday life and in various industrial applications. By investigating this topic, he reveals the mechanism of flow-induced vibration of flexible bodies, the process of energy exchange between flexible bodies and fluids and the way flexible bodies interact with each other in flowing fluids. These studies not only allow us to understand nature better, but can also help us invent new machines and improve existing devices to glean more energy from nature.
Experimental And Theoretical Study Of Fluid Structure Interactions In Plunging Hydrofoils And Gravity Driven Falling Plates
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Author : Ruijun Tian
language : en
Publisher:
Release Date : 2015
Experimental And Theoretical Study Of Fluid Structure Interactions In Plunging Hydrofoils And Gravity Driven Falling Plates written by Ruijun Tian and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Flexible structures categories.
Two typical unsteady fluid-structure interaction problems have been investigated in the present study. One of them was about actively plunged flexible hydrofoil; the other was about gravity-driven falling plates in water. Real-time velocity field and dynamic response on the moving objects were measured to study these unsteady and highly nonlinear problems. For a long time, scientists have believed that bird and insect flight benefits greatly from the flexibility and morphing facility of their wings via flapping motion. A significant advantage flexible wing models have over quasi-steady rigid wing models is a much higher lift generation capability. Both experimental and computational studies have shown that the leading and trailing edge vortexes (LEX and TEV) play a major role in the efficient generation of such unconventionally high lift force. In this study, two NACA0012 miniature hydrofoils, one flexible and the other rigid, were actively plunged at various frequencies in a viscous glycerol-water solution to study the influence of flexibility. Two-dimensional, phase-locked particle image velocimetry (PIV) measurements were conducted to investigate the temporal and spacial development of LEVs and TEVs. Simultaneous measurements of lift and thrust forces were recorded to reveal the relationship between hydrodynamic force and the evolution of the surrounding flow field. Results from the flexible hydrofoil were compared to those from the rigid one in order to quantitatively analyze the effects of flexibility. The second problem focused on fluid-structure interaction of gravity driven falling plates. Falling leaves and paper cards in air has drawn plenty of research interest in the past decades to investigate the interaction between the fluid flow and the falling object. In this research, time-resolved PIV were employed to experimentally visualize the flow field evolution around the gravity-driven falling plates. The plates were made of different materials with various geometric dimensions, in order to investigate the effects of non-dimensional parameters such as Reynolds number (Re) and dimensionless moment of inertia (I*). Within the range of relative high Reynolds numbers (Re > 500), three types of falling modes were observed: i.e., periodic fluttering, periodic tumbling and marginal chaotic motion. It was found that the nondimensional moment of inertia controlled the falling mode. The flow features through the falling path of the plate were characterized and compared with their corresponding kinematics. Based on theoretical analysis and experimental results, a semi-analytical model was developed to calculate the real-time hydrodynamic force and moment applied on falling plates. With this model, the falling trajectory of 2D plates with arbitrary material/dimension combinations can be predicted. The model yielded a good match for both the dynamic force simulation and trajectory prediction.
On The 3 Dimensional Fluid Structure Interaction Of Flexible Fibers In A Flow
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Author : Ryan Howard Allaire
language : en
Publisher:
Release Date : 2015
On The 3 Dimensional Fluid Structure Interaction Of Flexible Fibers In A Flow written by Ryan Howard Allaire and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Fibers categories.
Applied Mechanics Reviews
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Author :
language : en
Publisher:
Release Date : 1970
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 1970 with Mechanics, Applied categories.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1993
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Aeronautics categories.
Hydraulic Research In The United States
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Author :
language : en
Publisher:
Release Date : 1964
Hydraulic Research In The United States written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Hydraulic engineering categories.
Transactions Of The 4th International Conference On Structural Mechanics In Reactor Technology San Francisco California Usa 15 19 August 1977 Thermal And Fluid
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Author :
language : en
Publisher:
Release Date : 1977
Transactions Of The 4th International Conference On Structural Mechanics In Reactor Technology San Francisco California Usa 15 19 August 1977 Thermal And Fluid written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Nuclear engineering categories.
Nbs Special Publication
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Author :
language : en
Publisher:
Release Date : 1964
Nbs Special Publication written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Weights and measures categories.
Current Hydraulic Laboratory Research In The United States
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Author :
language : en
Publisher:
Release Date : 1964
Current Hydraulic Laboratory Research In The United States written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Hydraulic engineering categories.
Miscellaneous Publication National Bureau Of Standards
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Author : United States. National Bureau of Standards
language : en
Publisher:
Release Date : 1934
Miscellaneous Publication National Bureau Of Standards written by United States. National Bureau of Standards and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1934 with Weights and measures categories.