On The Theory Of Compliant Wall Drag Reduction In Turbulent Boundary Layers
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On the Theory of Compliant Wall Drag Reduction in Turbulent Boundary Layers
Author | : Robert L. Ash |
Publsiher | : Unknown |
Total Pages | : 52 |
Release | : 1974 |
Genre | : Drag (Aerodynamics) |
ISBN | : UIUC:30112106678623 |
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Viscous Drag Reduction in Boundary Layers
Author | : Anonim |
Publsiher | : AIAA |
Total Pages | : 542 |
Release | : 1990 |
Genre | : Boundary layer |
ISBN | : 1600863787 |
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Prediction of Compliant Wall Drag Reduction
Author | : National Aeronautics and Space Administration (NASA) |
Publsiher | : Createspace Independent Publishing Platform |
Total Pages | : 32 |
Release | : 2018-08-06 |
Genre | : Electronic Book |
ISBN | : 1724680730 |
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A numerical model of turbulent boundary layer flows over compliant walls was investigated. The model is based on Burton's observation that outer flow structures in turbulent boundary layers produce large scale pressure fluctuations near the wall. The results of calculations indicate that certain small wavelength wall motions can have a significant effect upon the stability of turbulent boundary layers. Orszag, S. A. Unspecified Center NASA-CR-3071 NAS1-14906
Structure of Turbulence and Drag Reduction
Author | : Albert Gyr |
Publsiher | : Springer Science & Business Media |
Total Pages | : 617 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 9783642509711 |
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In 1976 a similar titled IUTAM Symposium (Structure of Turbulence and Drag Reduction) was held in Washington . However, the progress made during the last thirteen years as weil as the much promising current research desired a second one this year. In Washington drag reduction by additives and by direct manipulation of the walls (compliant walls and heated surfaces) were discussed. In the meantime it became evident that drag reduction also occurs when turbulence is influenced by geometrical means, e.g. by influencing the pressure distribution by the shape of the body (airfoils) or by the introduction of streamwise perturbances on a body (riblets). In the recent years turbulence research has seen increasing attention being focused on the investigation of coherent structures, mainly in Newtonian fluids. We all know that these structures are a significant feature of turbulent flows, playing an important role in the energy balance in such flows. However their place in turbulence theories as weil as the factors influencing their development are still poorly understood. Consequently, the investigation of phenomena in which the properties of coherent structures are alte red provides a promising means of improving our understanding of turbulent flows in general.
Turbulence Structure and Modulation
Author | : Alfredo Soldati,Rosesella Monti |
Publsiher | : Springer |
Total Pages | : 319 |
Release | : 2014-05-04 |
Genre | : Technology & Engineering |
ISBN | : 9783709125748 |
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Controlling turbulence is an important issue for a number of technological applications. Several methods to modulate turbulence are currently being investigated. This book describes various aspects of turbulence structure and modulation, and explains and discusses the most promising techniques in detail.
Laminar Turbulent Boundary Layers
Author | : American Society of Mechanical Engineers. Multiphase Flow Committee |
Publsiher | : Unknown |
Total Pages | : 194 |
Release | : 1984 |
Genre | : Boundary layer |
ISBN | : UCSD:31822001958693 |
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Applied mechanics reviews
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 400 |
Release | : 1948 |
Genre | : Mechanics, Applied |
ISBN | : OSU:32435026160655 |
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NASA Technical Memorandum
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 64 |
Release | : 1974 |
Genre | : Aeronautics |
ISBN | : MINN:31951000844863T |
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