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A visual investigation of the wall region in turbulent flow

Published online by Cambridge University Press:  29 March 2006

E. R. Corino  and
Robert S. Brodkey
E. R. Corino
Affiliation:
Department of Chemical Engineering, The Ohio State University, Columbus, Ohio, 43210
Robert S. Brodkey
Affiliation:
Department of Chemical Engineering, The Ohio State University, Columbus, Ohio, 43210
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Abstract

The objective of this study is to investigate for turbulent flow the fluid motions very near a solid boundary, and to create a physical picture which relates these motions to turbulence generation and transport processes. An experimental technique was developed which permitted detailed observations of the regions very near a pipe wall, including the viscous sublayer, without requiring the introduction of any injection or measuring device into the flow. This technique involved suspending solid particles of colloidal size in a liquid, and photographing their motions with a high-speed motion picture camera moving with the flow. To provide greater detail, the field of view was magnified.

Fluid motions were observed to change in character with distance from the wall. The sublayer was continuously disturbed by small-scale velocity fluctuations of low magnitude and periodically disturbed by fluid elements which penetrated into the region from positions further removed from the wall. From a thin region adjacent to the sublayer, fluid elements were periodically ejected outward toward the centreline. Often there was associated with these events a zone of high shear at the interface between the mean flow and the decelerated region that gave rise to the ejected element. When the ejected element entered this shear zone, it interacted with the mean flow and created intense, chaotic velocity fluctuations. These ejections and resulting fluctuations were the most important feature of the wall region, and are believed to be a factor in the generation and maintenance of turbulence.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 37 , Issue 1 , 5 June 1969 , pp. 1 - 30
Copyright
© 1969 Cambridge University Press

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References

Bakewell, H. P. 1966 Ph.D. Dissertation, Department of Aerospace Engineering, Pennsylvania State University.
Black, T. J. 1966 Proc. Heat Transfer & Fluid Mech. Inst. Stanford Univ.
Black, T. J. 1968 AIAA 6th Aerospace Sciences Meeting, Paper no. 68–42.
Bradshaw, P. 1967 J. Fluid Mech. 30, 241.
Brodkey, R. S. 1967. The Phenomena of Fluid Motions. Reading, Mass.: Addison-Wesley.
Corino, E. R. 1965 Ph.D. Dissertation, The Ohio State University.
Danckwerts, P. V. 1951 Ind. Engng Chem. 43, 1450.
Deissler, R. C. 1955 NACA TR 1210.
Deissler, R. C. & Eian, C. S. 1952 NACA TN 2629.
Einstein, H. A. & Li, H. 1955 Heat Transfer & Fluid Mech. Inst. Univ. California, Los Angeles, Paper 13.
Fage, A. 1963 Phil. Mag. 21, 80.
Fage, A. & Townend, H. C. H. 1932 Proc. Roy. Soc. A 135, 656.
Ferrari, C. 1959 NASA RE 2-8-59W.
Grant, H. L. 1958 J. Fluid. Mech. 4, 149.
Hanratty, T. J. 1956 A.I.Ch.E.J. 2, 359.
Hanratty, T. J. 1967 Phys. Fluids 10, S216.
Harriott, P. 1962 Chem. Engng Sci. 17, 149.
Higbie, R, 1935 Trans. A.I.Ch.E. 31, 365.
Hinze, J. O. 1958 Turbulence New York: McGraw-Hill.
Kármán, T. von 1939 Trans. ASME. 61, 705.
Klebanoff, P. S. 1954 NACA TN 3178.
Kistler, A. L. 1962 Méchanique de la Turbulence, Editions du Centre National de la Recherche Scientifique, p. 287.
Kline, S. J., Reynolds, W. C., Schraub, F. A. & Runstadler, P. W. 1967 J. Fluid Mech. 30, 741.
Kline, S. J. & Runstadler, P. W. 1959 J. Appl. Mech. 26, 166.
Landahl, M. T. 1967 J. Fluid Mech. 29, 441.
Laufer, J. 1954 NACA TR 1174.
Lin, C. S., Moulton, R. W. & Putnam, G. L. 1953 Ind. Engng Chem. 45, 636.
Ludwieg, H. & Tillman, W. 1949 Ing.-Arch. 18, 288.
Malkus, W. V. R. 1956 J. Fluid Mech. 1, 521.
Mitchell, J. E. & Hanratty, T. J. 1966 J. Fluid Mech. 26, 199.
Nedderman, R. M. 1961 Chem. Engng Sci. 16, 113.
Phillips, O. M. 1967 J. Fluid Mech. 27, 131.
Prandtl, L. 1904 Proc. 3rd Int. Math. Congr., Heidelberg, 1928; NACA TM 452 (trans.).
Reichardt, H. 1951 Z. angew. Math. Mech. 1, 208.
Runstadler, P.W., KLINE, S.J. & REYNOLDS, W.C. 1963 Stanford University, Department of Mechanics Engineering Dept, Rept. MD-8.
Schraub, F. A. & KLINE, S. J. 1965 Stanford University, Department of Mechanical Engineering, Rept. MD-13.
Schubert, G. & CORCUS, G. M. 1967 J. Fluid Mech. 29, 113.
Sternberg, J. 1967 Phys. Fluids 10, S146.
Toor, H. J. & MARCHELLO, L. M. 1958 A.I.Ch.E.J. 4, 97; 1963 Ind. Engng Chem. Fund 2, 8.
Townsend, A. A. 1956 The Structure of Turbulent Shear Flow. Cambridge University Press.
Townsend, A. A. 1958 Boundary Layer Res. Symp., Int. Union Theor. & Appl. Mechs. Berlin: Springer.
Tcwnsend, A. A. 1961 J. Fluid Mech. 11, 97.
Tritton, D. J. 1967 J. Fluid Mech. 28, 439.
Willmarth, W. N. & TU, B. J. 1967 Phys. Fluids 10, S 134.
Willmarth, W. N. & WOOLDRIDGE, C. E. 1962 J. Fluid Mech. 14, 187.
Wills, J. A. B. 1967 Nat. Phys. Lab. Aero. Rep. no. 1224.