Nonlinear Stability of a Viscous Axisymmetric Jet PDF Download
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Author: Judith Horwitz
Publisher:
ISBN:
Category :
Languages : en
Pages : 294
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Author: Judith Horwitz
Publisher:
ISBN:
Category :
Languages : en
Pages : 294
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Author: Charles Russell Weber
Publisher:
ISBN:
Category : Fluid dynamics
Languages : en
Pages : 226
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Author: National Aeronautics and Space Adm Nasa
Publisher: Independently Published
ISBN: 9781728916224
Category : Science
Languages : en
Pages : 30
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Book Description
The stability characteristics of a laminar, axisymmetric jet, issuing from fully developed Poiseuille flow, are investigated. The jet preferred frequency, as inferred from surveys of u'-spectra, is found to yield a Strouhal number (St) that depends on the Reynolds number (R); St and R are based on the jet diameter (D) and the average velocity (U sub av) at the jet origin. The value of St increases with increasing R in the range 400 less than approximately R less than approximately 4000, attaining an asymptotic value of about 0.45. Flow visualization confirms that the instability is primarily in a helical mode, as predicted by stability analyses. Analyses do predict a similar St versus R variation in approximately the correct St-range. However, the R-range where this is predicted is lower than that found experimentally. Zaman, K. B. M. Q. and Seiner, J. M. Glenn Research Center; Langley Research Center RTOP 505-62-21
Author: Richard D. Webb
Publisher:
ISBN:
Category : Jets
Languages : en
Pages : 176
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 30
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Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 602
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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:
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ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 628
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Author: Essam E. A. F. Ibrahim
Publisher:
ISBN:
Category : Fluid dynamics
Languages : en
Pages : 224
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Author: Ronald J. Hugo
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Category :
Languages : en
Pages :
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Author: Sudhaker Chhabra
Publisher:
ISBN:
Category : Jets
Languages : en
Pages : 124
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