Ebook: Applications of Laser Techniques to Fluid Mechanics: 5th International Symposium Lisbon, Portugal, 9-12 July, 1990

This volume consists of papers selected from the proceedings of the Fifth International Symposium on Applications of Laser Techniques to Fluid Mechanics, held at the Calouste Gulbenkian Foundation in Lisbon from 9 to 12 July, 1990. Relative to previous meetings in the Lisbon series the scope of this symposium was broadened by expanding the topical coverage to include all laser techniques used in fluid mechanics. This change recognized the trend amongst experimental fluid dynamicists to employ laser techniques for the mea­ surement of many different quantities, including concentration, temperature, particle size, and velocity, and the need for researchers to have a forum in which to communicate their work and share their common interests. The Fifth Symposium contained twenty-three sessions of formal presentations and a lively Open Forum ses­ sion. In addition, Dr. H. J. Pfeiffer organized a special Workshop on the Use of Computers in Flow Mea­ surements which contained five sessions on frequency domain processors, correIa tors, special detectors, and biasing.

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Content:
Front Matter....Pages I-VIII
Front Matter....Pages 1-1
Four-Dimensional Laser Induced Fluorescence Measurements of Conserved Scalar Mixing in Turbulent Flows....Pages 3-18
Planar Laser-Induced Fluorescence Scalar Measurements in a Turbulent Jet....Pages 19-33
Simultaneous Measurement of Velocity and Temperature of Water Using LDV and Fluorescence Technique....Pages 34-53
Simultaneous, Real-Time Line Measurements of Concentration and Velocity in Turbulent Flows....Pages 54-80
Digital Particle Image Thermometry and its Application to a Heated Vortex-Ring....Pages 81-101
Temperature Measurement on 3D Asymmetric Thermal Flow Field by Laser Holographic Interferometry....Pages 102-122
Front Matter....Pages 123-123
LDA Measurements of Plastic and Elastic Collisions of Small Particles with Metal Surfaces....Pages 125-141
The Influence of Swirl on the Particle Dispersion in a Pipe Expansion Flow....Pages 142-162
Flow Measurements in a Liquid Fuelled Burner....Pages 163-182
Fringe Count Limitations on the Accuracy of Velocity and Mass Flux in Two-Phase Flows....Pages 183-202
Measurement of Size and Velocity Distributions of Droplets Produced by Bubbles Bursting....Pages 203-226
Sensitivity of Dropsize Measurements by Phase Doppler Anemometry to Refractive Index Changes in Combusting Fuel Sprays....Pages 227-247
LDA Measurement of Gasoline Droplet Velocities and Sizes at Intake-Valve Annular Passage in Steady Flow State....Pages 248-267
Measurement of Fuel Injector Spray Flow of I.C. Engine by FFT Based Phase Doppler Anemometer-An Approach to the Time Series Measurement of Size and Velocity....Pages 268-287
Front Matter....Pages 289-289
Signal Processing Considerations for Laser Doppler and Phase Doppler Applications....Pages 291-316
Improved Optical Systems for Velocimetry and Particle Sizing Using Semiconductor Lasers and Detectors....Pages 317-330
A Photothermal Velocimeter Using an Optical Fibre Heterodyne Interferometer with Phase Differentiation at Two Points....Pages 331-346
Two-Point Adapter for LDA Probe Using Multimode Fibers....Pages 347-363
Velocity Measurement Using Fibre Optic Sagnac Interferometers....Pages 364-384
Semiconductor Long-Range Anemometer Using a 5 mW Diode Laser and a Pin Photodiode....Pages 385-399
Front Matter....Pages 289-289
An Experimental Evaluation of a Novel Method of Using Localized Laser Heating in the Determination of Wall Shear Stress....Pages 400-412
Front Matter....Pages 413-413
Application of Particle Image Velocimetry to Transonic Flows....Pages 415-434
Studies of Liquid Turbulence Using Double-Pulsed Particle Correlation....Pages 435-450
Turbulent Intensity Evaluation with PIV....Pages 451-463
Instantaneous Particle Image Velocimetry with Electronic Specklegram....Pages 464-475
Measurement of Dynamics of Coherent Flow Structures Using Particle Image Velocimetry....Pages 476-499
Two-Phase Flow Velocity Measurements Using Automated-Based Imaging Pulsed Laser Velocimetry....Pages 500-520
Mixing Flow in a Cylindrical Vessel Agitated by a Bubbling Jet - Application of Image Processing Velocimetry....Pages 521-536
Visualization and Measurement of Detailed Velocity Field in U-Bend and Branched Tube Using Laser-Induced Flourescence Method....Pages 537-552
Photobleaching Flow Visualization....Pages 553-567

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Content:
Front Matter....Pages I-VIII
Front Matter....Pages 1-1
Four-Dimensional Laser Induced Fluorescence Measurements of Conserved Scalar Mixing in Turbulent Flows....Pages 3-18
Planar Laser-Induced Fluorescence Scalar Measurements in a Turbulent Jet....Pages 19-33
Simultaneous Measurement of Velocity and Temperature of Water Using LDV and Fluorescence Technique....Pages 34-53
Simultaneous, Real-Time Line Measurements of Concentration and Velocity in Turbulent Flows....Pages 54-80
Digital Particle Image Thermometry and its Application to a Heated Vortex-Ring....Pages 81-101
Temperature Measurement on 3D Asymmetric Thermal Flow Field by Laser Holographic Interferometry....Pages 102-122
Front Matter....Pages 123-123
LDA Measurements of Plastic and Elastic Collisions of Small Particles with Metal Surfaces....Pages 125-141
The Influence of Swirl on the Particle Dispersion in a Pipe Expansion Flow....Pages 142-162
Flow Measurements in a Liquid Fuelled Burner....Pages 163-182
Fringe Count Limitations on the Accuracy of Velocity and Mass Flux in Two-Phase Flows....Pages 183-202
Measurement of Size and Velocity Distributions of Droplets Produced by Bubbles Bursting....Pages 203-226
Sensitivity of Dropsize Measurements by Phase Doppler Anemometry to Refractive Index Changes in Combusting Fuel Sprays....Pages 227-247
LDA Measurement of Gasoline Droplet Velocities and Sizes at Intake-Valve Annular Passage in Steady Flow State....Pages 248-267
Measurement of Fuel Injector Spray Flow of I.C. Engine by FFT Based Phase Doppler Anemometer-An Approach to the Time Series Measurement of Size and Velocity....Pages 268-287
Front Matter....Pages 289-289
Signal Processing Considerations for Laser Doppler and Phase Doppler Applications....Pages 291-316
Improved Optical Systems for Velocimetry and Particle Sizing Using Semiconductor Lasers and Detectors....Pages 317-330
A Photothermal Velocimeter Using an Optical Fibre Heterodyne Interferometer with Phase Differentiation at Two Points....Pages 331-346
Two-Point Adapter for LDA Probe Using Multimode Fibers....Pages 347-363
Velocity Measurement Using Fibre Optic Sagnac Interferometers....Pages 364-384
Semiconductor Long-Range Anemometer Using a 5 mW Diode Laser and a Pin Photodiode....Pages 385-399
Front Matter....Pages 289-289
An Experimental Evaluation of a Novel Method of Using Localized Laser Heating in the Determination of Wall Shear Stress....Pages 400-412
Front Matter....Pages 413-413
Application of Particle Image Velocimetry to Transonic Flows....Pages 415-434
Studies of Liquid Turbulence Using Double-Pulsed Particle Correlation....Pages 435-450
Turbulent Intensity Evaluation with PIV....Pages 451-463
Instantaneous Particle Image Velocimetry with Electronic Specklegram....Pages 464-475
Measurement of Dynamics of Coherent Flow Structures Using Particle Image Velocimetry....Pages 476-499
Two-Phase Flow Velocity Measurements Using Automated-Based Imaging Pulsed Laser Velocimetry....Pages 500-520
Mixing Flow in a Cylindrical Vessel Agitated by a Bubbling Jet - Application of Image Processing Velocimetry....Pages 521-536
Visualization and Measurement of Detailed Velocity Field in U-Bend and Branched Tube Using Laser-Induced Flourescence Method....Pages 537-552
Photobleaching Flow Visualization....Pages 553-567
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