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Author:
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ISBN:
Category :
Languages : en
Pages : 104
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 104
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Author: William J. Alford
Publisher:
ISBN:
Category : Air flow
Languages : en
Pages : 100
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Book Description
The flow-field characteristics beneath swept and unswept wings as determined by potential-flow theory are compared with the experimentally determined flow fields beneath swept and unswept wing-fuselage combinations. The potential-flow theory utilized considered both the spanwise and chordwise distributions of vorticity as well as the wing-thickness effects. The perturbation velocities induced by a unit horseshoe vortex are included in tabular form.
Author: Lester Lee Small
Publisher:
ISBN:
Category :
Languages : en
Pages : 100
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Author: Joachim Joseph Ehlery Lay
Publisher:
ISBN:
Category :
Languages : en
Pages : 288
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Author: Thomas J. Pivirotto
Publisher:
ISBN:
Category : Nuclear rockets
Languages : en
Pages : 43
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Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 456
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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author: Murugan Thangadurai
Publisher: LAP Lambert Academic Publishing
ISBN: 9783846549032
Category :
Languages : en
Pages : 164
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Book Description
Flow field and acoustic characteristics of compressible vortex ring evolution and its interaction with wall have been investigated for Mach number varying from 1.3 to 1.85 using high speed smoke visualizations and microphone. Importance of vortex ring study, classifications, generation mechanism, parameters that characterize its evolution and time line of vortex rings research since its discovery are discussed in Chap. 1. Shock tube design and theory of shock tube flow with the history and applications of shock tube are discussed in Chap. 2 and appendix A. The spatial and angular variations of incident shock diffracted at the shock tube exit are also studied using hot wire anemometer. The effect of driver section length, its pressure, and various driver section gases on shock strength and uniform flow time is discussed using method of characteristics (MOC) technique. Evolution of primary and counter rotating vortex rings (CRVR) are studied in chap. 3 and 4. Vortex ring diameter increases rapidly and translational velocity decreases during the formation and evolution of CRVR. The shock and wall interaction of vortex ring are discussed in Chap. 5.
Author: JOACHIM JOSEPH ELLERY LAY
Publisher:
ISBN:
Category :
Languages : en
Pages : 584
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Author: Chaoqun Liu
Publisher: Academic Press
ISBN: 0128190248
Category : Science
Languages : en
Pages : 458
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Book Description
Liutex and Its Applications in Turbulence Research reviews the history of vortex definition, provides an accurate mathematical definition of vortices, and explains their applications in flow transition, turbulent flow, flow control, and turbulent flow experiments. The book explains the term "Rortex" as a mathematically defined rigid rotation of fluids or vortex, which could help solve many longstanding problems in turbulence research. The accurate mathematical definition of the vortex is important in a range of industrial contexts, including aerospace, turbine machinery, combustion, and electronic cooling systems, so there are many areas of research that can benefit from the innovations described here. This book provides a thorough survey of the latest research in generalized and flow-thermal, unified, law-of-the-wall for wall-bounded turbulence. Important theory and methodologies used for developing these laws are described in detail, including: the classification of the conventional turbulent boundary layer concept based on proper velocity scaling; the methodology for identification of the scales of velocity, temperature, and length needed to establish the law; and the discovery, proof, and strict validations of the laws, with both Reynolds and Prandtl number independency properties using DNS data. The establishment of these statistical laws is important to modern fluid mechanics and heat transfer research, and greatly expands our understanding of wall-bounded turbulence. Provides an accurate mathematical definition of vortices Provides a thorough survey of the latest research in generalized and flow-thermal, unified, law-of-the-wall for wall-bounded turbulence Explains the term “Rortex as a mathematically defined rigid rotation of fluids or vortex Covers the statistical laws important to modern fluid mechanics and heat transfer research, and greatly expands our understanding of wall-bounded turbulence
Author: Ben Bernard Levitt
Publisher:
ISBN:
Category : Mechanical engineering
Languages : en
Pages :
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