Speckle Photography for Fluid Mechanics Measurements

Speckle photography is an advanced experimental technique used for quantitatve determination of density, velocity and temperature fields in gas, liquid, and plasma flows. This book presents the most important equations for the diffraction theory of speckle formation and the statistical properties of speckle fields. It also describes experimental set-ups and the equipment needed to implement these methods. Speckle photography methods for automatic data acquisition and processing are considered and examples for their use are given.

Introduces the theory of speckle photography - Describes experimental techniques, equipment and recording methods - discusses density measurement in laminar flows, velocity measurements and turbulence parameter estimations in turbulent flows - provides a description of speckle tomography for complex phase objects

Contenu

1. Introduction.- 2. Diffraction Theory of Speckle Photography.- 3. Statistical Properties of Speckle Patterns.- 4. Speckle Field Generation and Recording.- 5. Basic Optical Schemes for Obtaining Specklegrams.- 6. Specklegram Treatment.- 7. Density (Temperature) Measurements in Laminar Flows.- 8. Velocity Measurements.- 9. Measurements of Turbulence Parameters: Scalar Fields.- 10. Speckle Tomography of Transparent Objects.- References.