Skin Friction Measurements In Incompressible Flow
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Skin Friction Measurements In Incompressible Flow
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Author : Donald W. Smith
language : en
Publisher:
Release Date : 1959
Skin Friction Measurements In Incompressible Flow written by Donald W. Smith and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1959 with Compressibility categories.
Experiment have been conducted to measure the local surface-shear stress and the average skin-friction coefficient in incompressible flow for a turbulent boundary layer on a smooth flat plate having zero pressure gradient. Data were obtained for a range of Reynolds numbers from 1 million to 45 million. The local surface-shear stress was measured by a floating-element skin-friction balance and also by a calibrated total head tube located on the surface of the test wall. The average skin-friction coefficient was obtained from boundary-layer velocity profiles.
Skin Friction Measurements In Incompressible Flow With List Of References
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Author :
language : en
Publisher:
Release Date : 1959
Skin Friction Measurements In Incompressible Flow With List Of References written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1959 with categories.
Skin Friction Measurements In Incompressible Flow
DOWNLOAD
Author : Donald W. Smith
language : en
Publisher:
Release Date : 1959
Skin Friction Measurements In Incompressible Flow written by Donald W. Smith and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1959 with Compressibility categories.
Skin Friction Measurements In An Incompressible Pressure Gradient Turbulent Boundary Layer Review Of Techniques And Results
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Author :
language : en
Publisher:
Release Date : 2002
Skin Friction Measurements In An Incompressible Pressure Gradient Turbulent Boundary Layer Review Of Techniques And Results written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.
Experimental definition of the local and integral values of friction drag of an aircraft or its elements is one of the basic problems of applied aerodynamics. We also should note the undoubted significance of this value for the development of modern lifting profiles and other aircraft elements, the description of near-wall flows in a form of similarity laws and testing of the numerical techniques of computation of flow around such aircrafts. However, to define this value accurately, one should have a clear conception of the possibilities and efficiency of application of one or another technique for a special case of body flow around. Though any experimental work assumes application of a certain concrete technique, including one for skin friction finding, the available literature information is as a rule uncoordinated, i.e., this information reflects only the level of availability of the technique applied. For this reason the researches like devoted to the development of new techniques and investigation of the efficiency of the known ones under various experimental conditions, become very important. The simplified layout gives a pictorial view of the main techniques of skin friction measurement, existing at the present time. The detailed consideration of these techniques is given in The present paper presents a comparative analysis of a number of direct and indirect measuring techniques wen they are applied in a incompressible turbulent boundary layer of a flat plate under the conditions of formation of a unfavorable (positive) and favorable (negative) streamwise pressure gradients on the plate surface, and also in plate gradient-free flow around.
Measurements Of Local Skin Friction In A Microbubble Modified Turbulent Boundary Layer
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Author : N. K. Madavan
language : en
Publisher:
Release Date : 1984
Measurements Of Local Skin Friction In A Microbubble Modified Turbulent Boundary Layer written by N. K. Madavan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Skin friction (Aerodynamics). categories.
Comparison Between Experimental Measurements And A Suggested Formula For The Variation Of Turbulent Skin Friction Incompressible Flow
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Author : Aeronautical Research Council
language : en
Publisher:
Release Date : 1951
Comparison Between Experimental Measurements And A Suggested Formula For The Variation Of Turbulent Skin Friction Incompressible Flow written by Aeronautical Research Council and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1951 with Skin friction (Aerodynamics) categories.
High Accuracy Determination Of Skin Friction Differences In An Air Channel Flow Based On Pressure Drop Measurements
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Author : Güttler, Andreas
language : en
Publisher: KIT Scientific Publishing
Release Date : 2017-04-13
High Accuracy Determination Of Skin Friction Differences In An Air Channel Flow Based On Pressure Drop Measurements written by Güttler, Andreas and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-04-13 with Technology (General) categories.
The present work delivers a versatile, accurate and reliable wind tunnel facility that is particularly developed to test different flow control techniques for drag reduction in precisely adjustable test conditions. Skin friction changes of 0.4% are resolved, which is comparable to the most accurate reported studies in liquids. this high accuracy is verified through a comprehensive uncertainty analysis. Subsequently, various passive and active flow control strategies are investigated.
Skin Friction Of Incompressible Turbulent Boundary Layers Under Adverse Pressure Gradients
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Author : Fabio R. Goldschmied
language : en
Publisher:
Release Date : 1951
Skin Friction Of Incompressible Turbulent Boundary Layers Under Adverse Pressure Gradients written by Fabio R. Goldschmied and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1951 with Friction categories.
Experimental data for skin friction of turbulent boundary layers under adverse pressure gradient are presented from several sources. Data obtained by momentum balance are shown to follow a trend opposite to that of data obtained by a hot-wire and heat-transfer methods. A new integral energy parameter and a new momentum thickness are introduced. The momentum equation and total-head measuring techniques are discussed in relation to skin-friction computation.
Turbulent Skin Friction At High Mach Numbers And Reynolds Numbers In Air And Helium
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Author : Fred W. Matting
language : en
Publisher:
Release Date : 1961
Turbulent Skin Friction At High Mach Numbers And Reynolds Numbers In Air And Helium written by Fred W. Matting and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with Mach number categories.
Velocity Profile Skin Friction Balance And Heat Transfer Measurements Of The Turbulent Boundary Layers At Mach 5 And Zero Pressure Gradient
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Author : Roland E. Lee
language : en
Publisher:
Release Date : 1969
Velocity Profile Skin Friction Balance And Heat Transfer Measurements Of The Turbulent Boundary Layers At Mach 5 And Zero Pressure Gradient written by Roland E. Lee and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Heat categories.
The results of a detailed experimental investigation of a two- dimensional turbulent boundary layer at zero-pressure gradient are presented. The studies were made at the free-stream Mach number of 5, momentum-thickness Reynolds number from 4800 to 56,000 and wall-to-adiabatic-wall temperature ratios from 0.5 to 1.0. The data are in analytical terms of velocity profile, temperature profile, law-of-the-wall, velocity-defect law and incompressible form factor. Comparisons of local skin-friction coefficients obtained by four different experimental methods are shown. An empirical equation was derived from the shear-balance data to calculate the friction coefficient from known values of Mach number, heat transfer and Reynolds number.