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A Stochastic Wave Model Interpretation Of Correlation Functions For Turbulent Shear Flows
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Book Synopsis A Stochastic Wave Model Interpretation of Correlation Functions for Turbulent Shear Flows by : Richard T. Lahey
Download or read book A Stochastic Wave Model Interpretation of Correlation Functions for Turbulent Shear Flows written by Richard T. Lahey and published by . This book was released on 1971 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Stochastic Wave Model Interpretation of Correlation Functions for Turbulent Shear Flows by : Richard Thomas Lahey (Jr.)
Download or read book A Stochastic Wave Model Interpretation of Correlation Functions for Turbulent Shear Flows written by Richard Thomas Lahey (Jr.) and published by . This book was released on 1971 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: The classical difficulties in synthesizing the velocity fluctuation field from turbulence data are discussed, including the closure problem, consequent non-uniqueness of the representation, and the loss of information due to averaging. In the present work the inverse approach is used, that is, several analytical models of the velocity fluctuation field, suggested by the flow visualization data, are compared with the existing space-time correlation function data. This approach effectively eliminates the closure problem, but due to its inductive nature, causes some difficulties in disclosing the underlying physics. Using the most promising model, the turbulent flow field has been decomposed, by modeling the velocity fluctations as non-deterministic travelling waves with random phase angles. It is found that this phenomenological model correctly represents the observed trends in the narrow band (frequency filtered) correlation function data. Next, the power spectral density function is identified as the appropriate frequency weighting function with which to synthesize the broad band (unfiltered) from the narrow band correlation functions. The functional form of the power spectral density function which agrees with the observed data is taken to be the superposition of a strong, unorganized background turbulence (Markoff noise) and an organized turbulent structure. The derived broad band correlation functions agree very well with a wide range of turbulent correlation function measurements.
Book Synopsis A Stochastic Wave Model Interpretation of Correlation Functions for Turbulent Shear Flows by : R. T. Lahey
Download or read book A Stochastic Wave Model Interpretation of Correlation Functions for Turbulent Shear Flows written by R. T. Lahey and published by . This book was released on 1971 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: The classical difficulties in synthesizing the velocity fluctuation field from turbulence data are discussed, including the closure problem, consequent non-uniqueness of the representation, and the loss of information due to averaging. In the present work the inverse approach is used, that is, several analytical models of the velocity fluctuation field, suggested by the flow visualization data, are compared with the existing space-time correlation function data. This approach effectively eliminates the closure problem, but due to its inductive nature, causes some difficulties in disclosing the underlying physics. Using the most promising model, the turbulent flow field has been decomposed, by modeling the velocity fluctations as non-deterministic travelling waves with random phase angles. It is found that this phenomenological model correctly represents the observed trends in the narrow band (frequency filtered) correlation function data. Next, the power spectral density function is identified as the appropriate frequency weighting function with which to synthesize the broad band (unfiltered) from the narrow band correlation functions. The functional form of the power spectral density function which agrees with the observed data is taken to be the superposition of a strong, unorganized background turbulence (Markoff noise) and an organized turbulent structure. The derived broad band correlation functions agree very well with a wide range of turbulent correlation function measurements.
Download or read book Bottom Turbulence written by and published by Elsevier. This book was released on 1977-01-01 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bottom Turbulence
Book Synopsis Turbulence in Fluids by : Marcel Lesieur
Download or read book Turbulence in Fluids written by Marcel Lesieur and published by Springer Science & Business Media. This book was released on 2008-03-26 with total page 593 pages. Available in PDF, EPUB and Kindle. Book excerpt: Now in its fully updated fourth edition, this leading text in its field is an exhaustive monograph on turbulence in fluids in its theoretical and applied aspects. The authors examine a number of advanced developments using mathematical spectral methods, direct-numerical simulations, and large-eddy simulations. The book remains a hugely important contribution to the literature on a topic of great importance for engineering and environmental applications, and presents a very detailed presentation of the field.
Book Synopsis Statistical Theories and Computational Approaches to Turbulence by : Y. Kaneda
Download or read book Statistical Theories and Computational Approaches to Turbulence written by Y. Kaneda and published by Springer. This book was released on 2002-10-14 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the papers presented at the workshop on Statistical The ories and Computational Approaches to Turbulence: Modern Perspectives and Applications to Global-Scale Flows, held October 10-13, 2001, at Nagoya Uni versity, Nagoya, Japan. Because of recent developments in computational capabilities, the compu tational approach is showing the potential to resolve a much wider range of length and time scales in turbulent physical systems. Nevertheless, even with the largest supercomputers of the foreseeable future, development of adequate modeling techniques for at least some scales of motion will be necessary for practical computations of important problems such as weather forecasting and the prediction and control of global pollution. The more powerful the available machines become, the more demand there will be for precise prediction of the systems. This means that more precise and reliable knowledge of the underlying dynamics will become important, and that more efficient and precise numerical methods best adapted to the new generation of computers will be necessary. The understanding of the nature of unresolved scales then will playa key role in the modeling of turbulent motion. The challenge to turbulence theory here is to elucidate the physics or dynamics of those scales, in particular their sta tistical aspects, and thereby develop models on sound bases to reduce modeling ambiguity. The challenge to the computational method is to develop efficient algorithms suitable for the problems, the machines, and the developed models.
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1995 with total page 1166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stochastic Analysis of Spectral Broadening by a Free Turbulent Shear Layer by : Jay C. Hardin
Download or read book Stochastic Analysis of Spectral Broadening by a Free Turbulent Shear Layer written by Jay C. Hardin and published by . This book was released on 1981 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Turbulent Shear Flows 6 by : Jean-Claude Andre
Download or read book Turbulent Shear Flows 6 written by Jean-Claude Andre and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the inaugural symposium at the Pennsylvania State University in 1977, the venues for the series of biennial symposia on turbulent shear flows have alternated between the USA and Europe. For the Sixth Symposium, the first to be held in France, the city of Toulouse proved a natura] choice, being a centre for the aerospace industry, meteorological research and higher education. The meeting was hosted by the Paul Sabatier University on the southern perimeter of the city, and there nearly 300 workers in the field of turbulence converged to pronounce upon, debate and absorb the current issues in turbulent shear flows and to enjoy the unfailing September sunshine. The meeting had attracted more than 200 offers of papers from which just over 100 full papers and about 20 shorter communications in open forums could be accommodated. The present volume contains 28 of the original symposium presentations selected by the editors. Each contribution has been revised by its authors - sometimes quite extensively -in the light of the oral presentation. It is our hope that the selection provides a substantial statement of permanent interest on current research in the five areas covered by this book, i.e. fundamentals and closures, scalar transport and geophysical flows, aerodynamic flows, complex flows, and numerical simulations.
Book Synopsis Index for Stanford University Mechanical Engineering Reports by : Stanford University. Department of Mechanical Engineering
Download or read book Index for Stanford University Mechanical Engineering Reports written by Stanford University. Department of Mechanical Engineering and published by . This book was released on 1978 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis American Doctoral Dissertations by :
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1992 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Eddy Structure Identification by : J.P. Bonnet
Download or read book Eddy Structure Identification written by J.P. Bonnet and published by CISM International Centre for Mechanical Sciences. This book was released on 1996-06-04 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a unique opportunity to present in a single volume information that is needed for both experimentalists, theoreticians and computationalists for the detection, analysis, prediction and control of eddy structures in turbulent shear flows. Major identification techniques of Eddy Structures in Turbulent Shear Flows are presented together with applications to vortex dynamics, turbulence management and flow control, for experimental and numerical applications with new prediction methods: Eduction Schemes, Proper Orthogonal Decomposition, Stochastic Estimation, Pattern Recognition Analysis, Wavelet Transform. Illustrations of the use of the different methods are given.
Book Synopsis Annual Commencement by : Stanford University
Download or read book Annual Commencement written by Stanford University and published by . This book was released on 1969 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of the Transitory Stall Regime in Two Dimensional Diffusers Including the Effects of Periodically Disturbed Inlet Conditions by : Stanford University. Thermosciences Division
Download or read book Experimental Investigation of the Transitory Stall Regime in Two Dimensional Diffusers Including the Effects of Periodically Disturbed Inlet Conditions written by Stanford University. Thermosciences Division and published by . This book was released on 1971 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied mechanics reviews written by and published by . This book was released on 1948 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydraulic Research in the United States by :
Download or read book Hydraulic Research in the United States written by and published by . This book was released on 1964 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt:
