Laser Techniques for Fluid Mechanics

I. Velocity.- I. 1. Light-in-Flight holography with switched reference beams for cross-correlation in deep volume PIV.- I. 2. 3D-PTV experiments of anomalous, steady transport of a conservative tracer in porous media.- I. 3. Investigation of the spatio-temporal flow structure in the log-law region of a turbulentboundary layer by means of multi-plane stereo particle image velocimetry.- I. 4. 3-Component Doppler laser-two-focus velocimetry applied to a transonic centrifugal compressor.- I. 5. Two-point chirp laser Doppler velocimeter using a powerful fibre-coupled green Nd:YAG ring laser.- I. 6. Maximum likelihood approaches for sound field measurement using LDV.- II. Scalar.- H. 1. Experimental investigation of heat transfer phenomena during direct contact condensation in the presence of non condensable gas by means of linear raman spectroscopy.- II. 2. On the accuracy of scalar dissipation measurements by laser Rayleigh scatering.- 11. 3. Demonstration of the applicability of a Background Oriented Schlieren (BOS) method.- II. 4. Transient temperature measurement of unburned gas using optic heterodyne interferometry.- III. Multi-Phase.- III. 1. Generic formulation of a generalized Lorenz-Mie theory for pulsed laser illumination.- III. 2. Measurement and prediction of the gaussian beam effect in the phase Doppler technique.- 11I. 3. Measurements of spray flow by an Improved Interferometer Laser Imaging Droplet Sizing (ILIDS) system.- 11I. 4. Two-dimensional imaging of sizes and number densities of nanoscaled particles.- 11I. 5. Simultaneous measurement of velocity and particle size profiles with the reference beam technique.- 11I. 6. Instantaneous whole field measurement of velocity and size of air microbubbles in two-phase flows using DDPIV.- 11I. 7. Liquid PIV measurements around a single gas slug rising through stagnant liquid in vertical pipes.- 11I. 8. PIV applied to landslide generated impulse waves.- IV. Turbulent Flows.- IV. 1. Behaviour of trailing vortices