Turbulent Flow Enhancement by Polyelectrolyte Additives PDF Download
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Author: David Leonard Wagger
Publisher:
ISBN:
Category :
Languages : en
Pages : 1772
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Author: David Leonard Wagger
Publisher:
ISBN:
Category :
Languages : en
Pages : 1772
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Book Description
Author: Albert Gyr
Publisher: Springer Science & Business Media
ISBN: 3642509711
Category : Science
Languages : en
Pages : 617
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Book Description
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.
Author:
Publisher:
ISBN:
Category : Heat
Languages : en
Pages : 630
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Author: A. Gyr
Publisher: Springer
ISBN: 9789048145553
Category : Technology & Engineering
Languages : en
Pages : 0
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Book Description
Drag Reduction of Turbulent Flows by Additives is the first treatment of the subject in book form. The treatment is extremely broad, ranging from physicochemical to hydromechanical aspects. The book shows how fibres, polymer molecules or surfactants at very dilute concentrations can reduce the drag of turbulent flow, leading to energy savings. The dilute solutions are considered in terms of the physical chemistry and rheology, and the properties of turbulent flows are presented in sufficient detail to explain the various interaction mechanisms. Audience: Those active in fundamental research on turbulence and those seeking to apply the effects described. Fluid mechanical engineers, rheologists, those interested in energy saving methods, or in any other application in which the flow rate in turbulent flow should be increased.
Author: David L. Klausmeyer
Publisher:
ISBN:
Category : Papermaking
Languages : en
Pages : 178
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Author:
Publisher:
ISBN:
Category : Weights and measures
Languages : en
Pages : 360
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Author: Rita R. Colwell
Publisher: CRC Press
ISBN:
Category : Science
Languages : en
Pages : 584
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Author: United States. National Bureau of Standards
Publisher:
ISBN:
Category : Hydraulic engineering
Languages : en
Pages : 696
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Author:
Publisher:
ISBN:
Category : Petroleum
Languages : en
Pages : 1528
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Book Description
Author:
Publisher:
ISBN:
Category : Hydraulic engineering
Languages : en
Pages : 360
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