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The influence of roughness trips upon boundary-layer transition Part 3. Characteristics of rows of spherical transition trips

Published online by Cambridge University Press:  04 July 2016

Summary

Following Parts 1 and 2 of this experimental study the effects of rows of spherical roughness elements upon transition of the boundary layer are now described. Data presented includes that for the start of the end of transition, the effect of spacing of the roughness elements, the effective origin of the turbulent boundary layer and its development and the spanwise variations across the turbulent boundary layer.

Type
Research Article
Copyright
Copyright © Royal Aeronautical Society 1996 

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Footnotes

*

Department of Mechanical Engineering. The University of Liverpool, PO Box 147, Liverpool L69 3BX.

**

Middle East Technical University, Gaziantep, Turkey.

***

Warren Springs Laboratory, Letchworth.

References

1. Preston, J. H. The minimum Reynolds number for a turbulent boundary layer and the selection of a transition device. J Fluid Mech, January 1958, 3, Pt 4, 373384.Google Scholar
2. Gibbings, J. C. On boundary-layer transition wires. ARC Curr 1959, Pap No 462 (London).Google Scholar
3. Gibbings, J. C. and Hall, D. J. Criterion for tolerable roughness in a laminar boundary layer. J Aircraft, March-April 1969, 6, 2, 171173.Google Scholar
4. Tani, I and Sato, H. Boundary-layer transition by roughness element, J Phys Soc, Japan, December 1956, 11, 12, 1284.Google Scholar
5. Klebanoff, P. S. and Tidstrom, K. D. Mechanism by which a two-dimensional roughness element induces boundary-layer transition. Phys Fluids, July 1982, 15, 7, 11731188.Google Scholar
6. Hall, D. J. and Gibbings, J. C. Influence of stream turbulence and pressure gradient upon boundary-layer transition. J Mech Eng Sci, 1972, 14, 2, 134146.Google Scholar
7. Abu-Ghannam, B. J. and Shaw, R. Natural transition of boundary layers — the effects of turbulence pressure gradient and flow history, J Mech Eng Sci, 1980, 22, 5, 213228.Google Scholar
8. Hall, A. A. and Hislop, G. S. Experiments on the transition of the laminar layer on a flat plate. ARC R & M 1843, 1938.Google Scholar
9. Tani, I. Komoda, K., Komatsu, Y. and Iuchi, M. Boundary-layer transition by isolated roughness. Rep No 375. Aero Res Inst, Univ Tokyo, Nov 1962, 28, 7, 129.Google Scholar
10. Patel, V. C. Calibration of Preston tube and limitations on its use in pressure gradients. J Fluid Mech, September 1965, 23, Pt 1, 185208.Google Scholar
11. Bradshaw, P. The effects of wind tunnel screens on two dimensional boundary-layers. NPL Aero Rep No 1085, 4th December 1963.Google Scholar
12. Von Doenhoff, A. E. Investigation of the boundary-layer about a symmetrical airfoil in a wind tunnel of low turbulence. NACA Wartime Report No L-507.Google Scholar
13. Hall, D. J. Boundary-layer transition. PhD thesis. University of Liverpool. October 1968.Google Scholar
14. Sacks, G. M. Skin friction experiments on rough walls. J Hyd Div Proc ASCE, June 1958, 84, No. HY3, Part 1, paper 1664.Google Scholar
15. Thom, A. The forces on a cylinder in a shear flow. ARC R&M 3343. July 1962.Google Scholar
16. Schubert, G. Viscous flow near a cusped corner. JFM, March 1967, 27, 647656.Google Scholar
17. Leipmann, H. W. and Fila, G. H. Investigation of the effects of surface temperature and single roughness elements on boundary-layer transition. NACA Report No 890, 1947.Google Scholar
18. Gibbings, J. C. A numerical experiment on measured velocity distributions of turbulent pipe flow. The Aero Journal, December 1980, 84, 839, 434.Google Scholar
19. Coles, D. W. The turbulent boundary-layer in a compressible fluid. App A Rand Corp Report No R-403-PR, 1962.Google Scholar
20. Coles, D. W. The problem of the turbulent boundary-layer. ZAMP, 1954. 5, 181203.Google Scholar
21. Coles, D. E. and Hirst, E. A. (Eds). Computation of turbulent boundary-layers—1968. Proc. AFOSR-IFP-Stanford Conference, 1968, 2, Data. Stanford Univ, 1969.Google Scholar
22. Goksel, O. T. Some effects of spherical roughness upon the incompressible flow of a boundary-layer. PhD thesis, Univ Liverpool, October 1968.Google Scholar
23. Klebanoff, P. S. and Diehl, Z. W. Some features of artificially thickened fully developed turbulent boundary layers with zero pressure gradient. NACA Report No 1110, Washington, 1950.Google Scholar
24. Komatsu, Y. and Hamda, N. Note on the minimum Reynolds number for a turbulent boundary layer. J of Research of the Inst Tech, Nihon Univ, 1962, 142.Google Scholar
25. Tani, I., Hama, F. R. and Mutuisi, S. On the effects of a single roughness element on boundary-layer transition. Rept Inst Sci and Tech, Tokyo University, May 1954, 8, 125133.Google Scholar
26. Pankhurst, R. C. and Holder, D. W. Wind tunnel technique. 463, Pitman, London, 1952.Google Scholar
27. Tani, I. and Hama, F. R. Some experiments on the effect of a single roughness element on boundary-layer transition. J Aero Sci, April 1953, 20, 4, 289.Google Scholar
28. Schlichting, H. Boundary-layer theory. McGraw-Hill, New York, 6th Ed, 1968.Google Scholar
29. Gibbings, J. C., Goksel, O. T. and Hall, D. J. The influence of roughness trips upon boundary-layer transition: Part 1; Characteristics of wire trips. The Aero Journal, October 1986, 90, 898, 289301.Google Scholar
30. Gregory, N. and Walker, W. S. The effect on transition of isolated surface excrescences in the boundary layer. ARC R&M No 2779, 1956.Google Scholar
31. Mochizuki, M. Smoke observations on boundary-layer transition caused by a spherical roughness element. J Phys Soc, Japan, 1961, 16, 959.Google Scholar
32. Peterson, J. B. and Horton, E. A. An investigation of the effect of a highly favourable pressure gradient on boundary layer transition as caused by various types of roughness on a 10ft diameter hemisphere at subsonic speeds. NASA Memo No 2-8-59L, April 1959.Google Scholar
33. Klebanoff, P. S., Schubauer, G. B. and Tidstrom, K. D. Measurements of the effect of two and three-dimensional roughness elements on boundary layer transition. J Aero Sci, November 1955, 22, 11, 803.Google Scholar
34. Fraser, C. J. and Milne, J. S. Boundary layer development from transition provoking devices. Int J Heat and Fluid Flow, 1980, 2, 4, 165.Google Scholar
35. Gupta, A. K. Some observations in the wake of a small vertical cylinder attached to a flat plate. Phys Fluids, January 1980, 23, 1, 221223.Google Scholar
36. Tani, I. Three-dimensional aspects of boundary-layer transition, Proc Indian Acad Sci (Eng Sci), August 1981, 4, Pt 2, 219238.Google Scholar
37. Mochizuki, M. Hot wire investigations of smoke patterns caused by a spherical roughness element. Nat Sci Rep, Ochanomizu University, 1961, 12, 2, 87101.Google Scholar
38. Hignet, E. T. The use of deposition as a means of flow visualisation. ARC Curr, 1963, Pap No 631.Google Scholar
39. Eichelbrenner, E. A. and Preston, J. H. On the role of secondary flow in turbulent layers in corners (and salients). Journal de Mecanique, March 1971, 10, 1, 91112.Google Scholar
40. Coles, D. The young person’s guide to the data. Proc AFOSRIFP-Stanford Conference, 1968. Stanford Univ, 2, 145 (Eds Coles, D. E., Hirst, E. A.), Stanford Univ, 1969.Google Scholar
41. Huffman, G. D. and Bradshaw, P. A note on von Karman’s constant in low Reynolds number turbulent flows. J. Fluid Mech, 1972, 53, 4560.Google Scholar
42. Gibbings, J. C., Goksel, O. T. and Hall, D. J.The Influence of roughness trips upon boundary-layer transition: Part 2; Characteristics of single spherical trips’. The Aero Journal, November 1986, 90, 899, 357367.Google Scholar
43. Carmichael, B. H. Critical Reynolds number for multiple three-dimensional roughness elements. Northrop Aircraft Report No. NAI-58-589 (BLC-112), 1958.Google Scholar
44. Loftin, L. K. Effects of specific types of surface roughness on boundary-layer transition. NACA Wartime Report No L-48, 1948.Google Scholar