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TECHNICAL PAPERS

Turbulence Attenuation by Small Particles in Simple Shear Flows

[+] Author and Article Information
David I. Graham

School of Mathematics and Statistics, University of Plymouth, Drake Circus, Plymouth, Devon PL4 8AA, UK,e-mail: dgraham@plymouth.ac.uk

J. Fluids Eng 122(1), 134-137 (Nov 03, 1999) (4 pages) doi:10.1115/1.483235 History: Received August 03, 1998; Revised November 03, 1999
Copyright © 2000 by ASME
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References

Gore,  R. A., and Crowe,  C. T., 1989, “Effect of Particle Size on Modulating Turbulent Intensity,” Int. J. Multiphase Flow, 15, pp. 279–285.
Eaton,  J. K., 1995, “Turbulence Modification by Particles in Shear Flows,” ASME FED, 228, pp. 273–278.
Squires,  K. D., and Eaton,  J. K., 1990, “Particle Response and Turbulence Modification in Isotropic Turbulence,” Phys. Fluids A, 2, pp. 1191–1203.
Graham, D. I., 1998, “Turbulence Modulation by Particles in Homogeneous Shear,” paper 5008, ASME FED Summer Meeting, Washington, DC.
Graham,  D. I., 1997, “Turbulence Modification in the Limiting Cases of Heavy- and Tracer-Particles,” ASME J. Fluids Eng., 119, No. 2, pp. 458–460.
Libby, P. A., 1996, An Introduction to Turbulence, Taylor & Francis, New York.
Varaksin, A. Y., Kurosaki, Y., Satoh, I., Polezhaev, Y. V., and Polyakov, A. F., 1998, “Experimental Study of the Direct Influence of the Small Particles on the Carrier Air Turbulence Intensity for Pipe Flow,” Third International Conference on Multiphase Flow, ICMF’98, Lyon, France
Squires,  K. D., and Eaton,  J. K., 1994, “Effect of Selective Modification of Turbulence on Two-Equation Models for Particle-Laden Turbulent Flows,” ASME J. Fluids Eng., 116, pp. 778–784.
Boivin, M., 1996, “Etude de l’Influence des Particules sur la Turbulence a partir de Simulations Directes et de Simulations des Grand Echelles d’Ecoulements Diphasiques Gaz-Solides Homogenes Isotropes Stationnaires,” Report HE-44/96/010/A, Department Laboratoire National d’Hydraulique, Electricite de France, France.
Kulick,  J. D., Fessler,  J. R., and Eaton,  J. K., 1994, “Preferential Concentration of Heavy Particles in a Turbulent Channel Flow,” Phys. Fluids, 6, pp. 3742–3749.
Paris, A. D., and Eaton, J. K., 1999, “PIV Measurements in a Particle-Laden Channel Flow,” paper 7863, ASME/JSME FED Summer Meeting, San Francisco, CA.

Figures

Grahic Jump Location
(a) Comparison between predictions of Eq. (14) with pipe flow results of Varksin et al. 7. (b) Comparison between predictions of Eq. (13) with pipe flow results of Varksin et al. 7. Lines: predictions, (symbols) experiments; (thick lines) Cs=1, (thin lines) Cs=0, (squares and solid lines) St=0.94 (50 mic alum. oxide); (crosses and dot-dash lines) St=0.6 (50 mic glass); (circles and dashed lines) St=2.4 (100 mic glass).
Grahic Jump Location
Comparison between predictions of Eq. (13) and experimental results of Kulick et al. 10. Line: prediction, (symbol) experiments (70 mic copper).
Grahic Jump Location
(a) Comparison between prediction from Eq. (14) and DNS results of Squires and Eaton 8. (b) Comparison between prediction from Eq. (13) and DNS results of Squires and Eaton 8. Lines: predictions; (symbols) experiments; (squares and solid lines) St=0.38; (circles and dot-dash line), St=1.9; (diamonds and dashed lines); St=3.8.

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