|
Acknowledgment |
4 |
List of Tables |
7 |
List of Figures |
9 |
Nomenclature |
13 |
Executive Summary |
14 |
Section 1
1530kb |
|
1 |
Introduction |
15 |
|
1.1 |
Motivation |
15 |
1.2 |
Program Objectives |
15 |
2 |
Particle Image Velocimetry (PIV) |
17 |
|
2.1 |
Introduction |
17 |
2.2 |
Two-Dimentsional PIV |
18 |
|
2.2.1 |
Cross-Correlation Algorithm (CCT) |
18 |
2.2.2 |
Multi-Frame Tracking Algorithm |
21 |
2.3 |
2D PIV Validation Experiments |
24 |
|
2.3.1 |
Cavity Flow Experiments |
24 |
|
2.3.1.1 |
Experimental Setup |
24 |
2.3.1.2 |
Experimental Techniques |
26 |
|
2.3.1.2.1 |
Laser Doppler Velocimetry (LDV) |
26 |
2.3.1.2.2 |
Particl Image Velocimetry (PIV) |
27 |
2.3.1.3 |
Experimental Approach |
28 |
2.3.1.4 |
Computational Approach |
29 |
2.3.1.5 |
Results of Cavity Flow Study |
31 |
|
2.3.1.5.1 |
Laser Doppler Velocimetry (LDV) |
31 |
2.3.1.5.2 |
Particle Image Velocimetry (PIV) |
31 |
2.3.1.5.3 |
Computational Simulations (FIDAP) |
34 |
Section 2
1036kb |
2.3.1.5.4 |
Comparison of Results |
38 |
2.3.1.6 |
Summary and Conclus |
39 |
2.3.2 |
2D Thermal Convection Experiments |
40 |
|
2.3.2.1 |
Results |
45 |
3 |
Three-Dimensional Particle Image Velocimetry |
49 |
|
3.1 |
Introduction |
49 |
3.2 |
Three-Dimensional PIV |
49 |
|
3.2.1 |
Camera Calibration and Particle Combination
Theory |
49 |
Section 3
764kb |
3.2.2 |
Theory for Tracking Programs |
55 |
3.3 |
3D Validation |
56 |
|
3.3.1 |
Synthetic Data |
56 |
3.3.2 |
Three-Dimensional Convection Experiment Set-Up |
57 |
3.3.3 |
Results of Three-Dimensional Experiments |
57 |
3.4 |
3D PIV Validation Computations |
58 |
Section 4
903kb |
4 |
Photorefractive Optics |
69 |
|
4.1 |
Introduction |
69 |
4.2 |
Experimental Investigations |
70 |
4.3 |
Experimental Results |
70 |
|
4.3.1 |
Turbulent Power Spectral Density Measurements |
70 |
4.3.2 |
Temporal Schlieren Visualization |
72 |
4.3.3 |
Orientation Effects on Flow Visualization |
72 |
4.3.4 |
Sensitivity to Wavefront vs. Slope
Disturbances |
73 |
4.3.5 |
Effect of Apertures |
73 |
4.3.6 |
Temporal Transmission Measurements |
73 |
4.4 |
Photorefractive PIV |
74 |
4.5 |
Summary |
74 |
Section 5
1196kb |
5 |
Conclusions |
84 |
Appendix A - PIV Software Operating Manuals |
85 |
|
A |
1. |
Instructions for Using PIV Software for 2D
Analysis |
85 |
A |
2. |
Instructions for Using PIV Software for 3D
Analysis |
86 |
Appendix B - 2D and 3D PIV Software: |
89 |
References |
97 |
Distribution |
100 |