Liutex Based And Other Mathematical Computational And Experimental Methods For Turbulence Structure

Author : Chaoqun Liu,Yisheng Gao
Publisher : Bentham Science Publishers
Page : 343 pages
File Size : 48,7 Mb
Release : 2020-04-28
Category : Science
ISBN : 9789811437588

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Liutex-based and Other Mathematical, Computational and Experimental Methods for Turbulence Structure by Chaoqun Liu,Yisheng Gao Pdf

The knowledge of quantitative turbulence mechanics relies heavily upon the definition of the concept of a vortex in mathematical terms. This reference work introduces the reader to Liutex, which is an accepted, accurate and mathematical definition of a vortex. The core of this book is a compilation of several papers on the subject. presented in the 13th World Congress of Computational Mechanics (WCCM2018), Symposium 704, Mathematics and Computations for Multiscale Structures of Turbulent and Other Complex Flows, New York, United States on July 27, 2018. This compilation also includes other research papers which explain the work done on the vortex definition, vortex identification and turbulence structure from different insight angles including mathematics, computational physics and experiments. The thirteen chapters in this volume will be informative to scientists and engineers who are interested in advanced theories about fluid dynamics, vortex science and turbulence research.

Author : Chaoqun Liu
Publisher : Current Developments in Mathem
Page : 342 pages
File Size : 49,9 Mb
Release : 2020-04-28
Category : Science
ISBN : 9811437599

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Liutex-based and Other Mathematical, Computational and Experimental Methods for Turbulence Structure by Chaoqun Liu Pdf

The knowledge of quantitative turbulence mechanics relies heavily upon the definition of the concept of a vortex in mathematical terms. This reference work introduces the reader to Liutex, which is an accepted, accurate and mathematical definition of a vortex. The core of this book is a compilation of several papers on the subject. presented in the 13th World Congress of Computational Mechanics (WCCM2018), Symposium 704, Mathematics and Computations for Multiscale Structures of Turbulent and Other Complex Flows, New York, United States on July 27, 2018. This compilation also includes other research papers which explain the work done on the vortex definition, vortex identification and turbulence structure from different insight angles including mathematics, computational physics and experiments. The thirteen chapters in this volume will be informative to scientists and engineers who are interested in advanced theories about fluid dynamics, vortex science and turbulence research.

Author : Chaoqun Liu,Hongyi Xu,Xiaoshu Cai,Yisheng Gao
Publisher : Academic Press
Page : 458 pages
File Size : 47,6 Mb
Release : 2020-10-29
Category : Science
ISBN : 9780128190241

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Liutex and Its Applications in Turbulence Research by Chaoqun Liu,Hongyi Xu,Xiaoshu Cai,Yisheng Gao Pdf

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 : Yiqian Wang,Yisheng Gao,Chaoqun Liu
Publisher : Springer Nature
Page : 421 pages
File Size : 42,5 Mb
Release : 2023-03-21
Category : Science
ISBN : 9789811989551

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Liutex and Third Generation of Vortex Identification by Yiqian Wang,Yisheng Gao,Chaoqun Liu Pdf

This proceedings highlights the applications of the newly introduced physical quantity Liutex in hydrodynamics and aerodynamics. Liutex is used to represent the fascinating rotational motion of fluids, i.e., the vortex. Ubiquitously seen in nature and engineering applications, the definition of vortices has been elusive. The Liutex vector provides a unique and systematic description of vortices. The proceedings collects papers presented in the invited workshop "Liutex and Third Generation of Vortex Identification for Engineering Applications" from Aerospace and Aeronautics World Forum 2021. The papers in this book cover both the theoretical aspects of Liutex and many applications in hydrodynamics and aerodynamics. The proceedings is a good reference for researchers in fluid mechanics who are interested in learning about the wide scope of applications of Liutex and using it to develop a new understanding of their research subjects.

Author : Chaoqun Liu,Yiqian Wang
Publisher : Springer Nature
Page : 479 pages
File Size : 50,6 Mb
Release : 2021-07-26
Category : Science
ISBN : 9783030702175

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Liutex and Third Generation of Vortex Definition and Identification by Chaoqun Liu,Yiqian Wang Pdf

This book collects papers presented in the Invited Workshop, “Liutex and Third Generation of Vortex Definition and Identification for Turbulence,” from CHAOS2020, June 9-12, 2020, which was held online as a virtual conference. Liutex is a new physical quantity introduced by Prof. Chaoqun Liu of the University of Texas at Arlington. It is a vector and could give a unique and accurate mathematical definition for fluid rotation or vortex. The papers in this volume include some Liutex theories and many applications in hydrodynamics, aerodynamics and thermal dynamics including turbine machinery. As vortex exists everywhere in the universe, a mathematical definition of vortex or Liutex will play a critical role in scientific research. There is almost no place without vortex in fluid dynamics. As a projection, the Liutex theory will play an important role on the investigations of the vortex dynamics in hydrodynamics, aerodynamics, thermodynamics, oceanography, meteorology, metallurgy, civil engineering, astronomy, biology, etc. and to the researches of the generation, sustenance, modelling and controlling of turbulence.

Author : Chaoqun Liu,Yifei Yu
Publisher : BoD – Books on Demand
Page : 126 pages
File Size : 42,5 Mb
Release : 2024-01-24
Category : Science
ISBN : 9781837686407

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Vortex Simulation and Identification by Chaoqun Liu,Yifei Yu Pdf

This book includes six chapters covering new vortex theories, vortex identification methods, and vortex simulation and applications. Vortices are ubiquitous in the universe and include tornados, hurricanes, airplane tip vortices, polar vortices, and even star vortices in the galaxy. Vortices are also building blocks, muscles, and sinews of turbulent flows. This book is useful for researchers in hydrodynamics, aerodynamics, thermodynamics, oceanography, meteorology, metallurgy, civil engineering, astronomy, biology, and more. It is also useful for research on the generation, sustenance, modeling, and controlling of turbulence.

Author : Jiyuan Tu,Guan-Heng Yeoh,Chaoqun Liu
Publisher : Butterworth-Heinemann
Page : 498 pages
File Size : 46,8 Mb
Release : 2018-02-06
Category : Technology & Engineering
ISBN : 9780081012444

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Computational Fluid Dynamics by Jiyuan Tu,Guan-Heng Yeoh,Chaoqun Liu Pdf

Computational Fluid Dynamics: A Practical Approach, Third Edition, is an introduction to CFD fundamentals and commercial CFD software to solve engineering problems. The book is designed for a wide variety of engineering students new to CFD, and for practicing engineers learning CFD for the first time. Combining an appropriate level of mathematical background, worked examples, computer screen shots, and step-by-step processes, this book walks the reader through modeling and computing, as well as interpreting CFD results. This new edition has been updated throughout, with new content and improved figures, examples and problems. Includes a new chapter on practical guidelines for mesh generation Provides full coverage of high-pressure fluid dynamics and the meshless approach to provide a broader overview of the application areas where CFD can be used Includes online resources with a new bonus chapter featuring detailed case studies and the latest developments in CFD

Author : Tetsuo Fukuchi,Tatsuo Shiina
Publisher : Bentham Science Publishers
Page : 201 pages
File Size : 50,8 Mb
Release : 2012
Category : Technology & Engineering
ISBN : 9781608053407

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Industrial Applications of Laser Remote Sensing by Tetsuo Fukuchi,Tatsuo Shiina Pdf

This e-book is an essential review of land-based laser sensing methods, such as differential absorption, Raman scattering, laser-induced fluorescence, Doppler effect methods, laser-induced breakdown spectroscopy, and laser ultrasonics, and their respective application to specific industrial needs, such as natural gas leak detection, hydrogen gas leak detection, pollutant detection, wind profiling for windmill sites, minor constituent monitoring and concrete structure health monitoring. Readers will gain an updated overview of laser remote sensing techniques and their applications to the industrial environment.

Author : Yifei Yu
Publisher : Springer Nature
Page : 201 pages
File Size : 46,6 Mb
Release : 2024-06-29
Category : Electronic
ISBN : 9783031536700

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Mechanism of Hairpin Vortex Formation by Liutex by Yifei Yu Pdf

Author : Chaoqun Liu,Yiqian Wang
Publisher : Springer
Page : 0 pages
File Size : 40,9 Mb
Release : 2022-07-28
Category : Science
ISBN : 3030702197

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Liutex and Third Generation of Vortex Definition and Identification by Chaoqun Liu,Yiqian Wang Pdf

This book collects papers presented in the Invited Workshop, “Liutex and Third Generation of Vortex Definition and Identification for Turbulence,” from CHAOS2020, June 9-12, 2020, which was held online as a virtual conference. Liutex is a new physical quantity introduced by Prof. Chaoqun Liu of the University of Texas at Arlington. It is a vector and could give a unique and accurate mathematical definition for fluid rotation or vortex. The papers in this volume include some Liutex theories and many applications in hydrodynamics, aerodynamics and thermal dynamics including turbine machinery. As vortex exists everywhere in the universe, a mathematical definition of vortex or Liutex will play a critical role in scientific research. There is almost no place without vortex in fluid dynamics. As a projection, the Liutex theory will play an important role on the investigations of the vortex dynamics in hydrodynamics, aerodynamics, thermodynamics, oceanography, meteorology, metallurgy, civil engineering, astronomy, biology, etc. and to the researches of the generation, sustenance, modelling and controlling of turbulence.

Author : Holger Babinsky,John K. Harvey
Publisher : Cambridge University Press
Page : 481 pages
File Size : 51,7 Mb
Release : 2011-09-12
Category : Technology & Engineering
ISBN : 9781139498647

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Shock Wave-Boundary-Layer Interactions by Holger Babinsky,John K. Harvey Pdf

Shock wave-boundary-layer interaction (SBLI) is a fundamental phenomenon in gas dynamics that is observed in many practical situations, ranging from transonic aircraft wings to hypersonic vehicles and engines. SBLIs have the potential to pose serious problems in a flowfield; hence they often prove to be a critical - or even design limiting - issue for many aerospace applications. This is the first book devoted solely to a comprehensive, state-of-the-art explanation of this phenomenon. It includes a description of the basic fluid mechanics of SBLIs plus contributions from leading international experts who share their insight into their physics and the impact they have in practical flow situations. This book is for practitioners and graduate students in aerodynamics who wish to familiarize themselves with all aspects of SBLI flows. It is a valuable resource for specialists because it compiles experimental, computational and theoretical knowledge in one place.

Author : Tadeusz Stys
Publisher : Bentham Science Publishers
Page : 159 pages
File Size : 43,7 Mb
Release : 2009-08-11
Category : Mathematics
ISBN : 9781608050567

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Lecture Notes in Numerical Methods of Differential Equations by Tadeusz Stys Pdf

This Ebook is designed for science and engineering students taking a course in numerical methods of differential equations. Most of the material in this Ebook has its origin based on lecture courses given to advanced and early postgraduate students. This

Author : Marianna Braza,Yannick Hoarau,Yu Zhou,Anthony D. Lucey,Lixi Huang,Georgios E. Stavroulakis
Publisher : Springer Nature
Page : 384 pages
File Size : 53,6 Mb
Release : 2021-05-05
Category : Technology & Engineering
ISBN : 9789813349605

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Fluid-Structure-Sound Interactions and Control by Marianna Braza,Yannick Hoarau,Yu Zhou,Anthony D. Lucey,Lixi Huang,Georgios E. Stavroulakis Pdf

This book contains a thorough and unique record of recent advances in the important scientific fields fluid–structure interaction, acoustics and control of priority interest in the academic community and also in an industrial context regarding new engineering designs. It updates advances in these fields by presenting state-of-the-art developments and achievements since the previous Book published by Springer in 2018 after the 4th FSSIC Symposium. This book is unique within the related literature investigating advances in these fields because it addresses them in a complementary way and thereby enhances cross-fertilization between them, whereas other books treat these fields separately.

Author : Xinguo Zhang
Publisher : Springer
Page : 3068 pages
File Size : 41,8 Mb
Release : 2019-06-08
Category : Technology & Engineering
ISBN : 9789811333057

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The Proceedings of the 2018 Asia-Pacific International Symposium on Aerospace Technology (APISAT 2018) by Xinguo Zhang Pdf

This book is a compilation of peer-reviewed papers from the 2018 Asia-Pacific International Symposium on Aerospace Technology (APISAT 2018). The symposium is a common endeavour between the four national aerospace societies in China, Australia, Korea and Japan, namely, the Chinese Society of Aeronautics and Astronautics (CSAA), Royal Aeronautical Society Australian Division (RAeS Australian Division), the Korean Society for Aeronautical and Space Sciences (KSAS) and the Japan Society for Aeronautical and Space Sciences (JSASS). APISAT is an annual event initiated in 2009 to provide an opportunity for researchers and engineers from Asia-Pacific countries to discuss current and future advanced topics in aeronautical and space engineering.

Author : Genrikh Naumovich Abramovich
Publisher : Mit Press
Page : 671 pages
File Size : 44,9 Mb
Release : 1963
Category : Technology & Engineering
ISBN : 0262010089

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The Theory of Turbulent Jets by Genrikh Naumovich Abramovich Pdf

The author's first monograph on turbulent jets, in 1936, dealt solely with a free submerged jet. Since that time, the theory of the turbulent jet has been developed in many published works both in the USSR and abroad: it has been enriched with a large amount of experimental material and has been applied in many new fields of engineering. In the last 10 years very substantial progress has been made, and it has now become possible to go beyond the free submerged jet and to solve the problem of a jet in a stream of fluid, to take into account the interaction between the jet and solid walls, to ascertain the relationship between the contour of the jet and the ratio of its density to the density of the surrounding medium, and to establish the characteristic features of a supersonic jet. This monograph contains the results of further research by the author and his colleagues, as well as a critical reappraisal of the more important theoretical and experimental data published by other investigators. The first section deals with the theory of a turbulent jet of incompressible fluid. It gives a systematic analysis of numerous experimental data on velocity profiles, temperature, and the impurity concentration, as well as the outlines of the turbulent mixing lone. The second section sets forth the theory of turbulent gas jets, including strongly preheated and supersonic jets. The theory of free turbulence in a gas, suitable in principle for any degree of compressibility, is revised, and the equations are derived for motion and heat exchange in the boundary layer of a jet at very high temperature. The third section solves several problems of the spreading of jets in finite and semifinite space, and the fourth section describes various applications of the theory of jets, many of which are reported for the first time or have been significantly revised.