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Holographic techniques for whole-field thermal and fluid measurements*

Published online by Cambridge University Press:  04 July 2016

M. W. Collins*
Affiliation:
Thermo-Fluids Engineering Research Centre, City University, London

Summary

Measurement methods using holography are non-invasive, whole-field and can be applied in real-time. They are particularly appropriate for experimental validation of current CFD (computational fluid dynamics) codes which have 3-dimensional, transient, irregular geometry capabilities.

In holographic interferometry, the fringes formed by refractive index changes represent lines of constant Mach number in isentropic compressible flows and isotherms in convection. Examples are given of two-dimensional inter-ferograms in these areas, and their quantitative interpretation.

Automatic fringe and data processing is a necessity, and the method is extendable to three dimensions using tomographical reconstruction. These issues are discussed, together with the general question of comparison with flow predictions.

Fluid fields may also be treated on a three-dimensional time-dependent basis, using HCV (holocinematographic velocimetry), a holographic extension of PIV (particle image velocimetry). It is proposeds to run an experiment to measure both fluid and thermal fields, and surface temperatures simultaneously, using HCV or PIV, holographic interferometry and liquid crystal methods respectively.

Type
Research Article
Copyright
Copyright © Royal Aeronautical Society 1991 

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Footnotes

*

This paper is an extension of a presentation at the Royal Aeronautical Society Conference on Flow Visualisation Using Laser Techniques, University of Warwick, 10 May 1989.

References

1. Shtilman, L., Pelz, R. B. and Tsinober, A. Numerical investigation of helicity in turbulent flow. Paper No. 17, Procs. 10th Symposium on Turbulence, University of Missouri-Rolla, U.S.A., September 1986.Google Scholar
2. Bryanston-Cross, P. J., Lang, T., Oldfield, M. L. G. and Norton, R. J. G. Interferometric measurements in a turbine cascade using image-plane holography. Trans ASME J Eng Power, 1981, 103, pp 124130.Google Scholar
3. Lockett, J. F. and Collins, M. W. Holographic interferometry applied to rib-roughness heat transfer in turbulent flow, Int J Heat Mass Transfer, 1990, 33, (11), pp 24392449.Google Scholar
4. Lockett, J. F. Heat transfer from roughened surfaces using laser interferometry, PhD Thesis, Mech Eng Dept,City University, 1987.Google Scholar
5. Lockett, J. F. and Collins, M. W. Holographic interferometry and its applications to turbulent convective heat transfer, J Opt Sensors, 1986, 1, (3), pp 191208.Google Scholar
6. Ball, G. J., Gordon, A. L., Richards, P. H. and Thompson, G. T. The Measurement and Prediction of Local Gas Density in Low Pressure Steam Turbine Blade Passages at Off Design Incidence. CEGB Report TPRD/M/1122/M87, 1987.Google Scholar
7. Hunter, J. C. Automatic analysis of holographic interferograms. PhD Thesis, Mech Eng Dept, City University, 1988.Google Scholar
8. Dawes, W. N., Berry, P. E., Grant, R. J. and Richards, P. H. Computation of the Flow in a Cascade of High Stagger Transonic Tip Sections. CEGB Report TPRD/M/1418/N84, 1984.Google Scholar
9. Hunter, J. C. and Collins, M. W. The semi-automatic analysis of compressible flow interferograms. Meas Sci Technol, 1990, 1, pp 238246.Google Scholar
10. Bryanston-Cross, P. J. and Denton, J. D. Comparison of measured and predicted transonic flow around an airfoil. AIAA J, 1984, 22, (8), pp 10251026.Google Scholar
11. Nikuradse, J. Stromungsgesetze in rahren rohren. Forschtlft Ver. Dt. Ing., 361, NACA TM 1292, 1950.Google Scholar
12. Eckert, E. R. G. and Drake, R. M. Heat and Mass Transfer. McGraw-Hill New York, 1959.Google Scholar
13. Lockett, J. F. and Collins, M. W. Problems in using holographic interferometry to resolve the four-dimensional character of turbulence. Part 1: Theory and Experiment. J Opt Sensors, 1986, 1, (3), pp 211224.Google Scholar
14. Lockett, J. F., Hunter, J. C, Collins, M. W. and Croft, J. R. Heat transfer analysis using laser interferometry. Paper No 88-B42, Proceedings IMEKO XI Conference Instrumentation for the 21st Century, Houston, USA, October 1988.Google Scholar
15. Walklate, P. J. A two wavelength holographic technique for the study of two-dimensional thermal boundary layers. Int J Heat Mass Transfer, 24, pp 10511057.Google Scholar
16. Ciofalo, M., Fodemski, T. R. and Collins, M. W. Large eddy simulation of turbulent flow and heat transfer in plane channels. Proceedings of the 6th National Conference on Heat Transmission, pp 37-54, UIT(ItalianUnionofThermo-Fluid- Dynamics), Bari, Italy, June 1988.Google Scholar
17. Cantwell, B. J. Organised motion in turbulent flow, Ann Rev Fluid Mech, 1981, pp 457515.Google Scholar
18. Chieng, C. C. and Launder, B. E. On the calculation of turbulent heat transport downstream from an abrupt pipe expansion. Numer Heat Transfer, 1980, 3, pp 189207.Google Scholar
19. Ciofalo, M. and Collins, M. W. k-ϵ predictions of heat transfer in turbulent recirculating flows using an improved wall treatment. Numer Heat Transfer, 1989, Pt B, 15, pp 2147.Google Scholar
20. Grötzbach, G. Application of the TURBIT-3 subgrid scale model to scales between large eddy and direct simulations. Proceedings EUROMECH Colloquium No 199 on Direct and Large Eddy Simulation of Turbulence, pp 4346, Munich, Germany, September/October 1985.Google Scholar
21. Jahn, M. Dissertation. Technical University of Hanover, 1975.Google Scholar
22. Ostendorf, F. W., Mayinger, F. and Mewes, D. A. Atomographical method using holographic interferometry for the registration of three-dimensional unsteady temperature profiles in laminar and turbulent flow. Proceedings of the 8th Interna tional Heat Transfer Conference, Vol 2, pp 519524, San Francisco, USA, August 1986.Google Scholar
23. Hunter, J. C. and Collins, M. W. 3-D refractive index field reconstruction from holographic interferograms. Int J Opto electronics, 1989, 4, (2), pp 95132.Google Scholar
24. Craig, J., Lee, G. and Bachelo, W. Nd: YAG holographic interferometry for aerodynamic research. Proceedings of the SPIE Conference on Industrial Applications of Holography, San Diego, USA, August 1982.Google Scholar
25. Grant, I. and Smith, G. H. Modern Developments in Particle Image Velocimetry Dept of Offshore Eng, Heriot-Watt University, 1987.Google Scholar
26. Weinstein, L. M., Beeler, G. B. and Lindemann, A. M. High speed holo-cinematographic velocimeter for studying turbulent flow control physics. Proceedings AIAA Shear Flow Control Conference, paper AIAA-85-0526, Boulder, Col, USA, March 1985.Google Scholar
27. Hunter, J. C. and Collins, M. W. Processing of data from optical whole-field measurement methods and large eddy simulation predictions to investigate coherent structures. Int J Optoelectronics, 1990, 5, (5), pp 405438.Google Scholar
28. Ireland, P. T. and Jones, T. V. Detailed measurements of heat transfer on and around a pedestal in fully developed passage flow. Proceedings of the 8th International Heat Transfer Conference, pp 975980, San Francisco, USA, August 1986.Google Scholar
29. Stasiek, J., Collins, M. W. and Chew, P. Liquid crystal mapping of local heat transfer in crossed-corrugated geometrical elements for air heat exchangers. Eurotech Direct ‘91, Paper No. C413/040, Birmingham, Institution of Mechanical Engineers, July 1991.Google Scholar
30. Hiller, W. J., Koch, S. T. and Kowalewski, T. A. Three-dimensional structures in laminar natural convection in a cube-shaped enclosure. Proceedings of the 1st World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamics, pp 722729, Dubrovnik, Yugoslavia, September 1988.Google Scholar
31. Collins, M. W. and Ciofalo, M. Computational fluid dynamics and some current applications. J. Chem Tech Biotech, 1991, 52, (1), pp 547.Google Scholar
32. Stasiek, J. and Collins, M. W. Local Heat Transfer and Fluid Flow Fields in Cross-Corrugated Geometrical Elements for Rotary Heat Exchangers. Report No 1. Design of Wind Tunnel and Review of Liquid Crystal Thermography. Report for PowerGen. Thermo-Fluids Engineering Research Centre, City University, 1989.Google Scholar