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Sandia Bubble Column Hydrodynamics Table of Contents

Optical Diagnostics for Turbulent and Multiphase Flows:  Particle Image Velocimetry and Photorefractive Optics - 1997

O'Hern, T. J.
Torczynski, J. R.
Shagam, R. N.*
Blanchat, T. K.**
Chu, T. Y.**
Tassin-Leger, A. L.
Henderson, J. A.

Sandia National Laboratories

Table of Contents 637kb

  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