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Aspect Ratio Effects On Circular Cylinder Drag At Low Reynolds Numbers
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Book Synopsis Aspect Ratio Effects on Circular Cylinder Drag at Low Reynolds Numbers by : Jagdeesh Subramanian
Download or read book Aspect Ratio Effects on Circular Cylinder Drag at Low Reynolds Numbers written by Jagdeesh Subramanian and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Design of small uninhabited aerial vehicles is hampered by the relatively sparse database available for aerodynamic properties of basic shapes at low Reynolds number (Re). As a step towards remedying this situation, an experimental investigation of the influence of aspect ratio on the drag of circular cylinders at low Re has been conducted. The experiment itself faced the difficulty of measuring the small forces associated with low Re. A novel solution to this problem has been developed and applied in the Patterson Hall low speed wind tunnel at Mississippi State University. Using this method the drag characteristics of cylinders with aspect ratios varying from 16 down to 1 over a Reynolds number range from 10^5 down to 10^4 have been measured. This presentation will discuss the existing database, the present experimental method and the results that have been obtained.
Book Synopsis Aspect Ratio Effects on Circular Cylinder Drag at Low Reynolds Numbers by :
Download or read book Aspect Ratio Effects on Circular Cylinder Drag at Low Reynolds Numbers written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Design of small uninhabited aerial vehicles is hampered by the relatively sparse database available for aerodynamic properties of basic shapes at low Reynolds number (Re). As a step towards remedying this situation, an experimental investigation of the influence of aspect ratio on the drag of circular cylinders at low Re has been conducted. The experiment itself faced the difficulty of measuring the small forces associated with low Re. A novel solution to this problem has been developed and applied in the Patterson Hall low speed wind tunnel at Mississippi State University. Using this method the drag characteristics of cylinders with aspect ratios varying from 16 down to 1 over a Reynolds number range from 10^5 down to 10^4 have been measured. This presentation will discuss the existing database, the present experimental method and the results that have been obtained.
Book Synopsis Effects of Fineness Ratio and Reynolds Number on the Low-Speed Crosswind Drag Characteristics of Circular and Modified-Square Cylinders by : Linwood W. McKinney
Download or read book Effects of Fineness Ratio and Reynolds Number on the Low-Speed Crosswind Drag Characteristics of Circular and Modified-Square Cylinders written by Linwood W. McKinney and published by . This book was released on 1960 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: A wind-tunnel investigation has been made on modified-square and circular cylinders to determine the effects of fineness ratio and Reynolds numbers on the crosswind drag characteristics. Fineness ratios from 2 to 14 were investigated over a Reynolds number range from approximately 300,000 to 1,650,000 which corresponded to Mach numbers from 0.057 to 0.377.The result of the investigation show that at supercraft Reynolds numbers the drag coefficient of the circular cylinder increases with increasing Reynolds number for all fineness ratios but at low fineness ratios this effect is considerably less than at higher fineness ratios. For circular cylinders in the high fineness-ratio range there is a reduction in drag as the fineness ratio is decreased except for Reynolds numbers of 900,000 and 1,000,000, whereas at low fineness ratios the opposite trend generally occurs. The addition of hemispherical ends to the circular cylinder gave a substantial decrease in drag at a fineness ratio of 3.27 but the effect was negligible at fineness ratios of 5.27 and 10. The finite-length modified-square cylinder gave the reduction in drag over the two-dimensional modified-square cylinder for the complete range of test Reynolds numbers with the lowest fineness ratio giving the lowest drag at Reynolds numbers above 3O0,OOO.
Book Synopsis Effects of Fineness Ratioo and Reynolds Number on the Low-speed Crosswing Drag Characteristics of Circular and Modified-square Cylinders by : Linwood W. McKinney
Download or read book Effects of Fineness Ratioo and Reynolds Number on the Low-speed Crosswing Drag Characteristics of Circular and Modified-square Cylinders written by Linwood W. McKinney and published by . This book was released on 1960 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Summary of Drag Coefficients of Various Shaped Cylinders by : C. F. Heddleson
Download or read book Summary of Drag Coefficients of Various Shaped Cylinders written by C. F. Heddleson and published by . This book was released on 1957 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data are presented which can be used to predict the aerodynamic drag force caused by cylinders having different cross-sectional shapes. Drag characteristics of circular, square, rectangular, triangular, diamond, and elliptical cylinders, as well as a large range of thickness-to-chord ratio symmetrical airfoil shapes, are presented as a function of Reynolds number. In addition, certain Mach number characteristics are discussed.
Book Synopsis Effect of High Blockage on Flow Over Cylinders in a Duct with High Aspect Ratio by : Nader Saniei
Download or read book Effect of High Blockage on Flow Over Cylinders in a Duct with High Aspect Ratio written by Nader Saniei and published by . This book was released on 1984 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydrodynamics Around Cylindrical Structures by : Jorgen Fredsoe
Download or read book Hydrodynamics Around Cylindrical Structures written by Jorgen Fredsoe and published by World Scientific. This book was released on 1997-03-17 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Compressibility Effects on Drag by : Sighard F. Hoerner
Download or read book Compressibility Effects on Drag written by Sighard F. Hoerner and published by . This book was released on 1949 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Non-Newtonian Flow and Applied Rheology by : R. P. Chhabra
Download or read book Non-Newtonian Flow and Applied Rheology written by R. P. Chhabra and published by Elsevier. This book was released on 2011-04-08 with total page 750 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book bridges the gap between the theoretical work of the rheologist, and the practical needs of those who have to design and operate the systems in which these materials are handled or processed. It is an established and important reference for senior level mechanical engineers, chemical and process engineers, as well as any engineer or scientist who needs to study or work with these fluids, including pharmaceutical engineers, mineral processing engineers, medical researchers, water and civil engineers. This new edition covers a considerably broader range of topics than its predecessor, including computational fluid dynamics modelling techniques, liquid/solid flows and applications to areas such as food processing, among others. * Written by two of the world's leading experts, this is the only dedicated non-Newtonian flow reference in print. * Since first publication significant advances have been made in almost all areas covered in this book, which are incorporated in the new edition, including developments in CFD and computational techniques, velocity profiles in pipes, liquid/solid flows and applications to food processing, and new heat/mass transfer methods and models. * Covers both basic rheology and the fluid mechanics of NN fluids ? a truly self-contained reference for anyone studying or working with the processing and handling of fluids
Book Synopsis Synopsis of Lift, Drag, and Vortex Frequency Data for Rigid Circular Cylinders by : John H. Lienhard
Download or read book Synopsis of Lift, Drag, and Vortex Frequency Data for Rigid Circular Cylinders written by John H. Lienhard and published by . This book was released on 1966 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Low Reynolds Number Aerodynamics by : Thomas J. Mueller
Download or read book Low Reynolds Number Aerodynamics written by Thomas J. Mueller and published by Springer Science & Business Media. This book was released on 2013-03-08 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Current interest in a variety of low Reynolds number applications has focused attention on the design and evaluation of efficient airfoil sections at chord Reynolds numbers from about 100,000 to about 1,000,000. These applications include remotely piloted vehicles (RPVs) at high altitudes, sailplanes, ultra-light man-carrying/man powered aircraft, mini-RPVs at low altitudes and wind turbines/propellers. The purpose of this conference was to bring together those researchers who have been active in areas closely related to this subject. All of the papers presented are research type papers. Main topics are: Airfoil Design and Analysis, Computational Studies, Stability and Transition, Laminar Separation Bubble, Steady and Unsteady Wind Tunnel Experiments and Flight Experiments.
Book Synopsis Effects of Reynolds Number and Flow Incidence on the Force Characteristics of a Family of Flat-front Cylinders by : Vernard E. Lockwood
Download or read book Effects of Reynolds Number and Flow Incidence on the Force Characteristics of a Family of Flat-front Cylinders written by Vernard E. Lockwood and published by . This book was released on 1967 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flow-induced Vibration by : Robert D. Blevins
Download or read book Flow-induced Vibration written by Robert D. Blevins and published by . This book was released on 2001-01-01 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focuses on applications for offshore platforms and piping; and, wind-induced vibration of buildings, bridges, and towers. This title also focuses on acoustic and mechanical vibration of heat exchangers, power lines, and process ducting.
Book Synopsis Measurements of fluctuating effects on a circular cylinder in a uniform flow at subcritical Reynolds number. 1. The pressure distribution and lift and drag forces on an elemental cross section by : G. S. West
Download or read book Measurements of fluctuating effects on a circular cylinder in a uniform flow at subcritical Reynolds number. 1. The pressure distribution and lift and drag forces on an elemental cross section written by G. S. West and published by . This book was released on 1990 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modern Developments in Fluid Dynamics by : Sydney Goldstein
Download or read book Modern Developments in Fluid Dynamics written by Sydney Goldstein and published by . This book was released on 1950 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of the Effects of Viscosity on the Drag of Bodies of Revolution at a Mach Number of 1.5 by : Dean R. Chapman
Download or read book Experimental Investigation of the Effects of Viscosity on the Drag of Bodies of Revolution at a Mach Number of 1.5 written by Dean R. Chapman and published by . This book was released on 1947 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summary: Tests were conducted to determine the effects of viscosity on the drag and base pressure characteristics of various bodies of revolution at a Mach number of 1.5. The models were tested both with smooth surfaces and with roughness added to evaluate the effects of Reynolds number for both laminar and turbulent boundary layers. The principal geometric variables investigated were after-body shape and length-diameter ratio. For most models, force tests and base pressure measurements were made over a range of Reynolds numbers, based on model length, from 0.6 million to 5.0 millions. Schlieren photographs were used to analyze the effects of viscosity on flow separation and shock-wave configuration near the base and to verify the condition of the boundary layer as deduced from force tests. The results are discussed and compared with theoretical calculations.
Book Synopsis Flow Control Techniques and Applications by : Jinjun Wang
Download or read book Flow Control Techniques and Applications written by Jinjun Wang and published by Cambridge University Press. This book was released on 2018-12-13 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master the theory, applications and control mechanisms of flow control techniques.
