| Vorliegende Sprache |
eng |
| Hinweise auf parallele Ausgaben |
337989974 Buchausg. u.d.T.: ‡Zhang, Zheng-Ji: LDA application methods |
| ISBN |
978-3-642-13513-2 |
| Name |
Zhang, Zhengji |
| T I T E L |
LDA Application Methods |
| Zusatz zum Titel |
Laser Doppler Anemometry for Fluid Dynamics |
| Verlagsort |
Berlin, Heidelberg |
| Verlag |
Springer-Verlag Berlin Heidelberg |
| Erscheinungsjahr |
2010 |
| 2010 |
| Umfang |
Online-Ressource (XVI, 272 p, digital) |
| Reihe |
Experimental Fluid Mechanics ; 0 |
| Notiz / Fußnoten |
Includes bibliographical references and index |
| Weiterer Inhalt |
Preface; Contents; Symbols; Subscript; 1 Introduction; 1.1 Flows and Flow Measurements; 1.2 Traditional Methods of Flow Measurements; 1.3 Laser Methods and Laser Doppler Anemometry (LDA); 1.3.1 Developments of LDA Fundamentals and Instrumentations; 1.3.2 Developments of LDA Application Methods; 1.4 Purposeful Flow Measurements and Rational Measurement Evaluations; 1.5 Purposes of this Book; 2 Specifications of Engineering Turbulent Flows; 2.1 Turbulent Flow Properties; 2.1.1 Statistical Views of Flow Turbulences; 2.1.2 Isotropic and Anisotropic Turbulences; 2.2 Reynolds Turbulent Stresses. 3 LDA Principles and Laser Optics3.1 Light Wave and Its Propagation; 3.2 The Doppler Effect; 3.3 Superposition of Two Plane Light Waves; 3.4 LDA Principle; 3.5 Fringe Model on the Light Interference; 3.6 Frequency Shift Method to Resolve the Flow Direction; 3.6.1 Fringe Shift Speed; 3.7 Gaussian Beam Properties; 3.7.1 Geometrical Specifications of the Gaussian Beam; 3.7.2 Transmission Performance of the Gaussian Beam; 3.8 Measurement Volume Size; 4 LDA Systems; 4.1 Hardware and Optical Components; 4.2 Specification of LDA Measurement Volumes. 5 Basic Data Processing Methods in LDA Measurements5.1 Direct Data Processing for Mean Velocities and Velocity Fluctuations; 5.2 Weighting Facilities of Mean Velocity and Fluctuations; 6 Linear Transformation of Velocities and Turbulent Stresses; 6.1 Orthogonal Linear Transformation; 6.1.1 Velocity Transformation; 6.1.2 Turbulent Stress Transformation; 6.1.3 Directional Distribution of Turbulent Stresses; 6.1.3.1 On the Basic Parameters σxx, σyy and τxy; 6.1.3.2 On the Basic Parameters σ11 and σ22; 6.1.3.3 Approximation ϕm ≈ ϕ and Simplifications; 6.2 Non-orthogonal Transformation. 6.2.1 Velocity Transformation6.2.2 Turbulent Stress Transformation; 6.3 Graphical Presentation of Turbulent Stresses; 6.3.1 Ellipse Form of the Turbulence Distribution; 6.3.2 Expressions of Turbulent Stresses in Mohr's Stress Circle; 7 Tracer Particles and Particle Motion Equations; 7.1 Effective Forces Exerted on the Particle in the Flow; 7.1.1 Viscous Drag Force; 7.1.2 Gravitational and Lift Forces; 7.1.3 Pressure Force; 7.1.4 Force from Added Mass; 7.2 Particle Motion Equation; 7.3 Particle Motion in the Straight Flow of Constant Velocity; 7.4 Particle Motion in Nozzle and Diffuser Flows. 7.4.1 Nozzle Flow7.4.2 Diffuser Flow; 7.5 Particle Motion in the Oscillation Flow; 7.5.1 Particle Flows of Small Stokes Numbers; 7.5.2 Particle Flows of Large Stokes Numbers; 8 Zero Correlation Method (ZCM); 8.1 Shear Stress Measurements with Non-coincident LDA; 8.2 Basics of ZCM; 8.3 Extension of ZCM; 8.3.1 Non-orthogonal Velocity Components; 8.3.2 Three-Dimensional Flow Turbulence; 8.4 Restriction and Validation of ZCM; 9 Dual Measurement Method (DMM); 9.1 Possibility of Resolving the Secondary Flow; 9.2 DMM in Basic Form; 9.3 DMM with Coordinate Transformation; 9.4 Extension of DMM. 9.4.1 Direct Component Measurements |
| Titelhinweis |
Buchausg. u.d.T.: ‡Zhang, Zheng-Ji: LDA application methods |
| ISBN |
ISBN 978-3-642-13514-9 |
| Klassifikation |
TGMF |
| TGMF1 |
| TEC009070 |
| SCI085000 |
| 620.1064 |
| 681/.2 |
| 620.10640287 |
| TA357-359 |
| ZQ 3920 |
| ZQ 3760 |
| Kurzbeschreibung |
This technical book considers the application side of LDA techniques. Starting from the basic theories that are crucial for each LDA user, the main subject of the book is focused on diverse application methods. In details, it deals with universal methodical techniques that have been mostly developed in the last 15 years. The book thus gives for the first time an application reference for LDA users in improving the optical conditions and enhancing the measurement accuracies. It also provides the guidelines for simplifying the measurements and correcting measurement errors as well as for clarifying the application limits and extending the application areas of LDA techniques. Beside the treatments of some traditional optical and flow mechanical features influencing the measurement accuracies, the book shows a broad spectrum of LDA application methods in the manner of measuring the flow turbulence, resolving the secondary flow structures, and quantifying the optical aberrations at measurements of internal flows etc.. Thus, it also supports the further developments of both the hard- and software of LDA instrumentations. TOC:Introduction.- Specifications of engineering turbulent flows.- LDA principles and laser optics.- LDA systems.- Basic data processing methods in LDA measurements.- Linear transformation of velocities and turbulent stresses.- Tracing particles and particle motion equations.- Zero Correlation Method (ZCM).- Dual Measurement Method (DMM).- Symmetrical method of 3D-velocity measurements.- Measurements of non-stationary turbulent flows.- Flow turbulence in flows with velocity gradient.- Flow measurements behind plane windows: on-axis.- Flow measurements behind plane windows: off-axis.- Flow measurements in circular pipes.- Fringe distortion effects.- Velocity bias effects.- LDA application examples.- Appendices.- Subject index. |
| 1. Schlagwortkette |
Strömungsmesstechnik |
| Laser-Doppler-Anemometrie |
| ANZEIGE DER KETTE |
Strömungsmesstechnik -- Laser-Doppler-Anemometrie |
| 2. Schlagwortkette |
Strömungsmesstechnik |
| Laser-Doppler-Anemometrie |
| ANZEIGE DER KETTE |
Strömungsmesstechnik -- Laser-Doppler-Anemometrie |
| SWB-Titel-Idn |
329517708 |
| Signatur |
Springer E-Book |
| Bemerkungen |
Elektronischer Volltext - Campuslizenz |
| Elektronische Adresse |
$uhttp://dx.doi.org/10.1007/978-3-642-13514-9 |
| Internetseite / Link |
Volltext |
| Siehe auch |
Volltext |
| Siehe auch |
Inhaltsverzeichnis |
| Siehe auch |
Einführung/Vorwort |
