Browse > Article
http://dx.doi.org/10.5916/jkosme.2009.33.6.903

An Experimental Study on Flow Noise with Swirl in a 180 Degree Circular Tube  

Chang, Tae-Hyun (한국과학기술정보연구원)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.33, no.6, 2009 , pp. 903-911 More about this Journal
Abstract
During the past three or four decades, the characteristics of turbulent swirling flow have been studied extensively because of their scientific and academic importance. This research deal with the periodic flow oscillation with and without swirling flow in a 180 degree circular tube using hot wire anemometry, microphone and accelerometer. The frequency regions are observed through the structured oscillation from spectrum. This work carried out to measure the sound level by using hot wire anemometry, microphone and accelerometer for each Reynolds number, $6{\times}10^4$, $8{\times}10^4$ and $1{\times}10^5$ respectively at the entry of the test tube with and without swirl flow.
Keywords
Flow noise; Swirling flow; Background sound; Flow oscillation; Periodic flow oscillation;
Citations & Related Records
연도 인용수 순위
  • Reference
1 J. Thomson, "On the winding of river in alluvial planic, with remarkable on the flow of water round bend in pipe", Proc. K. Soc. London Ser. A 25, pp. 5-8. 1876
2 H. Ito, "Pressure losses in smooth pipe bends", J. of basic engineering pp. 131-139, 1960
3 Y. Agrawal, L. Talbot, and K. Gong, 'Laser anemometer study of flow development in curved circular pipes', J. fluid Mech., Vol. 85, pp. 497-518, 1977   DOI   ScienceOn
4 J. A. C. Humphrey, and J. H. Whitelaw and G. Yee, "Turbulent flow in a square duct with strong curvature", J. Fluid Mechan., Vol. 103, pp. 443-457, 1981   DOI   ScienceOn
5 Tae-Hyun Chang and H. S. Lee, "An experimental study on swirling flow in a 90 degree circular tube by using particle image velocimetry", J. of Visualization, Vol. 6, No. 4, pp. 343-352, 2003   DOI   ScienceOn
6 T. Mullin and C. A. Greated, "Oscillatory flow in a curved pipe, part 1: The developing flow case", J. fluid mech. Vol. 98, Part 2, pp. 383-395. 1980   DOI   ScienceOn
7 K. Sudo, M. Sumida, and Yamaane, "Secondary motion of fully developed oscillatory flow in a curved pipe", J. Fluid Mech., Vol. 237, pp. 198-289, 1991
8 J. J. Cassidy, and H. J. Falvey, "Observations of unsteady flow arising after vortex breakdown", JFM, Vol. 41, pp. 727-736, 1970   DOI
9 A. K. Garg, and S. Leibovish, "Spectral characteristics of vortex breakdown flow field", Phys. Fluids, Vol. 22, pp. 2053-2064, 1979   DOI
10 W. R. Dean, "The streamline motion of fluid in a curved pipe", Philos Mag, Vol. 30, pp. 673-693, 1928   DOI   ScienceOn
11 M. M. Enayet, and M. Yianneskis, "Measurement of turbulent developing flow in a moderatedly curved square duct", Int. J. Heat & Flow, Vol. 3, No. 4, pp. 221-224, 1982   DOI   ScienceOn
12 H. Iacovides, Momentum and Heat Transfer in Flow through $180^{\circ}$ Bend of Circular Section, Ph.D Thesis, University of Manchester. 1986
13 R. C. Chanaud, "Observation of oscillatory motion in swirling flows", J. of fluid mechanics, ASME, Vol. 21, pp. 111-127, 1965   DOI
14 S. Lebovich, "The structure of vortex breakdown", Ann. Rev. Fluid Mech, Vol. 10, pp. 221-246, 1978   DOI   ScienceOn
15 B. Vonnegut, "A vortex whistle", J. Acoust. Soc. Amer., Vol. 26, pp. 18, 1954   DOI
16 I. Ellustice, "Flow of water in curved pipe", Proc. K. Soc. London Ser. Vol.85 A25, pp. 119-131, 1911   DOI
17 Stahl B., and Michalke, 'On noise generated by turblence in a pipe downstream of a discountinous area enlargement', Aero and Hydro-Acostics JUTAM Symposium Lyon, pp. 385-392. 1985
18 Batch Thien Vu, Experimental Study of Turbulent Swirling Flows, PhD. Thesis, Cornel University, 1983