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Refractive index matching methods for liquid flow investigations

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Abstract

A difficulty common to most optical diagnostic techniques that are applied to fluid dynamics studies is the refraction of light passing through model and/or test section walls. The method of choice to eliminate refraction problems in liquid flows is to match refractive index. This paper presents techniques for refractive index matching including, (i) arrangement of test section and model, (ii) choice of solid and liquid materials, and (iii) methods for tuning the match. In addition, a new application of refractive index matching to liquid-liquid droplet studies is presented.

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References

  • Bicen AF (1982) Refraction correction for LDA measurements in flows with curved optical boundaries. TSI Quarterly 8: 10–12

    Google Scholar 

  • Boadway JD; Karahan E (1981) Correction of laser Doppler anemometer reading for refraction of cylindrical interfaces. DISA Information 26: 4–6

    Google Scholar 

  • Bovendeered PHM; Van Steenhoven AA; Van de Vosse FN; Vossers G (1987) Steady entry flow in a curved pipe. J Fluid Mech 177: 233–246

    Google Scholar 

  • Budwig R; Elger D; Hooper H; Slippy J (1993) Steady flow in abdominal aneurysm models. ASME J Biomech Eng 115

  • Budwig R; Martinez J; Carleson T (1993) Hydrodynamic and mass transfer characteristics of acoustically levitated and oscillated droplets. (abstract) Bull Amer Phys Soc 33: 2226.

    Google Scholar 

  • Chen RC; Fan LS (1992) Particle image velocimetry for characterizing the flow structure in three-dimensional gas-liquid-solid fluidized beds. Chem Eng Sci 47: 3615–3622

    Google Scholar 

  • Donnelly RJ (1981) Fluid dynamics. In: AIP 50th Anniversary Physics Vade Mecum, editor HL Anderson, pp 182–1954, American Institute of Physics, New York

    Google Scholar 

  • Duncan DD; Bargeron CB; Borchardt SE; Deters OJ; Gearhart SA; Mark FF (1990) The effect of compliance on wall shear in casts of a human aortic bifurcation. ASME J Biomech Eng 112: 183–188

    Google Scholar 

  • Durrani TS; Greated CA (1977) Laser Systems in Flow Measurement. pp 97–98. New York: Plenum Press

    Google Scholar 

  • Durret RP; Gould WH; Stevenson WH; Thompson HD (1985) A correction lens for laser Doppler velocimeter measurements in a cylindrical tube. AIAA 23: 1387–1391

    Google Scholar 

  • Durst F; Muller R; Jovanovic J (1988) Determination of the measuring position in laser-Doppler anemometry. Exp Fluids 6: 105–110

    Google Scholar 

  • Edwards RV; Dybbs A (1984) Refractive index matching for velocity measurements in complex geometries. TSI Quarterly 10: 3–11

    Google Scholar 

  • Hendricks F; Avram A (1981) Use of zinc iodide in flow research. Rev Sci Instrum 53: 75–78

    Google Scholar 

  • Hooper H (1992) Experimental studies of the hemodynamics in abdominal aortic aneurysms. M.S. thesis, University of Idaho

  • Hurlburt CS (1984) The jewler's refractometer as a mineralogical tool. American Mineralogist 69: 391–398

    Google Scholar 

  • Jan DL; Shapiro AH; Kamm RD (1989) Some features of oscillatory flow in a model bifurcation. J Appl Physiol 67: 147–159

    Google Scholar 

  • Kirk RE; Othmofer DF (eds) (1984) Kirk-Othmer encyclopedia of chemical technology. Third edition. Vol 11, pp 807–880. New York: John Wiley and Sons Inc

    Google Scholar 

  • Little Giant Pump Company (1993) Chemical resistance chart, form #995516-1193. Little Giant Pump Co., Oklahoma City, Oklahoma

    Google Scholar 

  • Liu CH; Vafidis C; Whitelaw JH (1990) Flow in the coolant passages of an internal combustion engine cylinder head. Exp Fluids 10: 50–54

    Google Scholar 

  • Lowe ML; Kutt PH (1992) Refraction through cylindrical tubes. Exp Fluids 13: 315–320

    Google Scholar 

  • Marston PL; Goosby SG (1985) Ultrasonically stimulated low-frequency oscillation and breakup of immiscible liquid drops: Photographs Phys Fluids 28: 1233–1242

    Google Scholar 

  • McDougall TJ (1979) On the elimination of refractive-index variations in turbulent density stratified flows. J Fluid Mech 93: 83–96

    Google Scholar 

  • Parry AJ; Lalor MJ; Tridimas YD; Woolley NH (1990) Refraction corrections for laser-Doppler anemometry in a pipe bend. Dantec Information 9: 4–6

    Google Scholar 

  • Perry RH; Green DW (eds) (1984) Perry's chemical engineering handbook. 6th edition, New York: McGraw-Hill

    Google Scholar 

  • Schmidt FW; Kulakowski B; Wang DF (1984) Evaluation of the effect of variable refraction index on the path of a laser beam. Exp Fluids 2: 153–158

    Google Scholar 

  • Shannon RR; Wyant JC (eds) (1979) Applied optics and optical engineering. p. 81. London: Academic Press

    Google Scholar 

  • Sinkankas J (1966) Mineralogy. Pp 226–233 Princeton: D Van Nostrand Company

    Google Scholar 

  • Strong J (1958) Concepts of classical optics. PP 50–52. San Francisco: WH Freeman and Company

    Google Scholar 

  • Weast RC (ed) (1988) Handbook of chemistry and physics. 69th edition, Boca Raton: CRC Press

    Google Scholar 

Download references

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The author would like to thank Rick James and Jon Martinez for their assistance in conducting the matching experiments and Professor Mickey Gunter for his comments on refractometry. We are grateful to the United States Department of Energy for financial support of the droplet work under Grant DE-FG07-86ER13572

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Budwig, R. Refractive index matching methods for liquid flow investigations. Experiments in Fluids 17, 350–355 (1994). https://doi.org/10.1007/BF01874416

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  • DOI: https://doi.org/10.1007/BF01874416

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