LDA Application Methods: Laser Doppler Anemometry for Fluid Dynamics

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This technical book considers the application aspect of LDA techniques. Starting from the basic theories that are crucial for LDA users, the main subject of the book is focused on diverse application methods. It deals in reality with universal methodical techniques which are directly related to the practical flow measurements and have been mostly developed in the last 15 years. The book thus gives to 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 extending the application areas of LDA techniques. Besides 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, 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.

Author(s): Zhengji Zhang (auth.)
Series: Experimental Fluid Mechanics
Edition: 1
Publisher: Springer-Verlag Berlin Heidelberg
Year: 2010

Language: English
Pages: 272
Tags: Engineering Fluid Dynamics;Fluid- and Aerodynamics;Industrial Chemistry/Chemical Engineering;Measurement Science and Instrumentation

Front Matter....Pages i-xv
Introduction....Pages 1-9
Specifications of Engineering Turbulent Flows....Pages 11-17
LDA Principles and Laser Optics....Pages 19-40
LDA Systems....Pages 41-45
Basic Data Processing Methods in LDA Measurements....Pages 47-52
Linear Transformation of Velocities and Turbulent Stresses....Pages 53-67
Tracer Particles and Particle Motion Equations....Pages 69-88
Zero Correlation Method (ZCM)....Pages 89-96
Dual Measurement Method (DMM)....Pages 97-111
Symmetrical Method of 3D-Velocity Measurements....Pages 113-116
Non-stationary Turbulent Flows....Pages 117-131
Turbulent Flow with Spatial Velocity Gradient....Pages 133-146
Flow Measurements Behind the Plane Window: On-axis....Pages 147-150
Flow Measurements Behind the Plane Window: Off-axis....Pages 151-189
Flow Measurements in Circular Pipes....Pages 191-217
Fringe Distortion Effects....Pages 219-226
Velocity Bias Effects....Pages 227-241
LDA Application Examples....Pages 243-251
Back Matter....Pages 253-272