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Laser Metrology in Fluid Mechanics By
2012 | 337 Pages | ISBN: 1848213980 | PDF | 6 MB
In fluid mechanics, non-intrusive measurements are fundamental in order to improve knowledge of the behavior and main physical phenomena of flows in order to further validate codes.The principles and characteristics of the different techniques available in laser metrology are described in detail in this book.Velocity, temperature and concentration measurements by spectroscopic techniques based on light scattered by molecules are achieved by different techniques: laser-induced fluorescence, coherent anti-Stokes Raman scattering using lasers and parametric sources, and absorption spectroscopy by tunable laser diodes, which are generally better suited for high velocity flows. The size determination of particles by optical means, a technique mainly applied in two-phase flows, is the subject of another chapter, along with a description of the principles of light scattering.For each technique the basic principles are given, as well as optical devices and data processing. A final chapter reminds the reader of the main safety precautions to be taken when using powerful lasers.Content: Chapter 1 Basics on Light Scattering by Particles (pages 1-66): Fabrice Onofri and Severine BarbosaChapter 2 Optical Particle Characterization (pages 67-158): Fabrice Onofri and Severine BarbosaChapter 3 Laser?Induced Fluorescence (pages 159-222): Fabrice Lemoine and Frederic GrischChapter 4 Diode Laser Absorption Spectroscopy Techniques (pages 223-270): Ajmal MohamedChapter 5 Nonlinear Optical Sources and Techniques for Optical Diagnostic (pages 271-306): Michel LefebvreChapter 6 Laser Safety (pages 307-320): Jean?Michel Most
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