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Measurement of Developing Turbulent Flows in a 90-Degree Square Bend with Spanwise Rotation  

Choi Young Don (Department of Mechanical Engineering, Korea University)
Kim Dong Chul (Graduate School, Department of Mechanical Engineering, Korea University)
Lee Kun Hee (Department of Mechanical Engineering, Wonkwang University)
Publication Information
Journal of Mechanical Science and Technology / v.19, no.7, 2005 , pp. 1503-1516 More about this Journal
Abstract
Mean flow and turbulence properties of developing turbulent flows in a 90 degree square bend with span-wise rotation are measured by a hot-wire anemometer. A slanted wire is rotated into 6 orientations and the voltage outputs from them are combined to obtain the mean velocity and the Reynolds stress components. Combined effects of the centrifugal and Coriolis forces due to the curvature and the rotation of the bend on the mean motion and turbulence structures are investigated experimentally. Results show that the two body forces can either enhance or counteract each other depending on the flow direction in the bend.
Keywords
Rotating Curved Duct; Hot-wire measurement; Reynolds Stress; Coriolis Force; Turbulent Flow;
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1 Tafti, D. K. and Vanka, S. P., 1991, 'A Numerical Study of the Effect of Span-wise Rotation on Turbulent Cannel Flow,' Phys. Fluids A, Vol. 3, No. 4, pp. 642-656   DOI
2 Younis, B. A., 1993, 'Prediction of Turbulent Flows in Rotating Rectangular Ducts,' Trans. ASME, J. of Fluids Eng., Vol. 115, pp. 646-652   DOI
3 Morris, W. D., 1981, 'Heat Transfer and Fluid Flow in Rotating Coolant Channels,' Chichester : John Wiley and Sons
4 Murata, A. and Mochizuki, S., 1999, 'Effect of Cross-Sectional Aspect Ratio on Turbulent Heat Transfer in an Orthogonally Rotating Rectangular Smooth Duct,' International J. of Heat and Mass Transfer, Vol. 42, pp. 3803-3814   DOI   ScienceOn
5 Pattersson, B. A. and Anderson, H. I., 1997, 'Near-Wall Reynolds-Stress Modeling in Non-inertial Frames of Reference,' Fluid Dynamics Res., Vol. 19, pp. 251-276   DOI   ScienceOn
6 Launder, B. E., Tselepidalsis, D. P. and Younis, B. A., 1987, 'A Second-Moment Closure Study of Rotating Channel Flow,' J. Fluid Mech., Vol. 183, pp. 63-75   DOI   ScienceOn
7 Launder, B. E. and Tselepidalsis, D. P., 1994, 'Application of a New Second Moment Closure to Turbulent Channel Flow Rotating in Orthogonal Mode,' International Journal of Heat and Fluid Flow, Vol. 15, No. 1, pp. 2-10   DOI   ScienceOn
8 Kristofferson, R., Nilsen, P. J. and Andersson, H. I., 1990, 'Validation of Reynolds Stress Closures for Rotating Channel Flows by Means of Direct Numerical Simulations,' Proc. International Symposium on Engineering Turbulence Modeling and Measurements, Dubrovinik, pp. 55-64
9 Koyama, D. K. and Ohuchi, M., 1985, Proc. of 5th International Symposium of Turbulent Shear Flows, Cornell, pp. 21-19
10 Kajishima, T., Miyake, Y. and Nishimoto, 1991, 'Large Eddy Simulation of Turbulent Flow in a Square Duct,' Trans. JSME (B), 57-540, pp. 2530-2537   DOI
11 Kim, J., 1983, 'The Effect of Rotation on the Turbulent Structure,' Proc. of $4^{th}$ International Symposium on Turbulent Shear Flows, Karlsruhe, pp. 6-14
12 Choi, Y. D., Shin, J. K., Chun, K. H. and Humphrey, J. A. C., 1997, 'Modeling Turbulent Flow in a Curved Duct of Square Cross-Section,' Proc. of $11^{th}$ Symposium on Turbulent Shear Flows, Grenoble, France, pp. 3.47~3.52
13 King, C. F., 1978, Ph.D. Thesis, Univ. College of Wales, Cardiff, Wales
14 Kristofferson, R. and Andersson, H. I., 1993, 'Direct Numerical Simulations of Low Reynolds Number Turbulent Flow in a Rotating Channel,' J. Fluid Mech., Vol. 256, pp. 163-197   DOI   ScienceOn
15 Johnston, J. P., Halleen, R. M. and Lezius, D. K., 1972, 'Effects of Spanwise Rotation on the Structure of Two-Dimensional Fully Developed Turbulent Channel Flow,' J. Fluid Mech., Vol. 56. No. 3, pp. 533-557   DOI
16 Anderson, H. I. and Kristoffersen, R., 1995, 'Turbulent Statistics of Rotating Channel Flow,' Turbulent Shear Flow, Vol. 9, Springer, Berlin, pp. 53-70
17 Choi, Y. D., Moon, C. and Yang, S. H., 1990, 'Measurement of Turbulent Flow Characteristics of Square Duct with a 180Degree Bend by Hot-Wire Anemometer,' Proc. of the International Symposium on Turbulence Modeling and Experiments, Dubrovnik, pp. 429-438
18 Jackson, T. W. and Lilly, D. G., 1983, 'Single Wire Swirl Flow Turbulence Measurement,' AIAA 83-1202, Cleveland, Ohio
19 Janjua, S. I., Mclaug, D. K., Jackson, T. W. and Lilly, D. G., 1982, 'Turbulence Measurements in a Confined Jet Using a Six-Orientation Hot-Wire Probe Technique,' AIAA 82-1262, Cleveland, Ohio
20 Bo, T., Iacovides, H. and Launder, B. E., 1995, 'Developing Buoyancy-Modified Turbulent Flow in Ducts Rotating in Orthogonal Mode,' Trans. ASME, J. of Turbomachinery, Vol. 117, pp. 65-95
21 Champagne, F. H., Sleicher, C. A. and Wehrmann, O. H., 1967, 'Turbulence Measurements with Inclined Hot-Wire,' J. luid Mech., Vol. 28, part 1, pp. 153-175   DOI