Unsteady Two-Phase Flow Measurements in Surges and Dam Break Waves

Chanson, Hubert (2004). Unsteady Two-Phase Flow Measurements in Surges and Dam Break Waves. In: Y. Matsumoto, K. Hishida, A. Tomiyama, K. Mishima and S. Hosokawa, Proceedings of the fifth International Conference on Multiphase Flow. Fith International Conference on Multiphase Flow, ICMF'04, Yokohama, Japan, (1-14). 30 May - 4 June, 2004.

Attached Files (Some files may be inaccessible until you login with your UQ eSpace credentials)
Name Description MIMEType Size Downloads
icmf04_1.pdf icmf04_1.pdf application/pdf 331.13KB 359

Author Chanson, Hubert
Title of paper Unsteady Two-Phase Flow Measurements in Surges and Dam Break Waves
Conference name Fith International Conference on Multiphase Flow, ICMF'04
Conference location Yokohama, Japan
Conference dates 30 May - 4 June, 2004
Proceedings title Proceedings of the fifth International Conference on Multiphase Flow
Place of Publication Japan
Publisher ICMF
Publication Year 2004
Sub-type Fully published paper
Editor Y. Matsumoto
K. Hishida
A. Tomiyama
K. Mishima
S. Hosokawa
Start page 1
End page 14
Total pages 14
Language eng
Abstract/Summary Flood waves resulting from dam breaks and flash floods have been responsible for numerous losses. In the present study, sudden flood releases were investigated down a large stepped waterway initially dry. A new experimental technique was developed to obtain instantaneous void fractions, bubble count rates and velocities. Unsteady air-water flow properties were recorded with arrays of conductivity probes. The results showed a strong aeration of the surge leading edge. Instantaneous velocity measurements indicated an unsteady turbulent boundary layer region with a potential flow above. In the unsteady boundary layer, void fraction and velocity data suggested a ratio of bubble diffusivity to eddy viscosity of about unity. Practically, the study provides new information on free-surface aeration in surging waters in channels and on beach slopes.
Subjects 290802 Water and Sanitary Engineering
290800 Civil Engineering
Keyword flood waves
sudden release
air entrainment
experiments
References BORNSCHEIN, A., and POHL, R. (2003). "Dam Break during the Flood in Saxon/Germay in August 2002." Proc. 30th IAHR Biennial Congress, Thessaloniki, Greece, J. GANOULIS and P. PRINOS Ed., Vol. C2, pp. 229-236. CARSLAW, H.S., and JAEGER, J.C. (1959). "Conduction of Heat in Solids." Oxford University Press, London, UK, 2nd ed., 510 pages. CHANSON, H. (1997). "Air Bubble Entrainment in Free-Surface Turbulent Shear Flows." Academic Press, London, UK, 401 pages. CHANSON, H. (1999). "The Hydraulics of Open Channel Flows : An Introduction." Butterworth-Heinemann, Oxford, UK, 512 pages. CHANSON, H. (2001). "The Hydraulics of Stepped Chutes and Spillways." Balkema, Lisse, The Netherlands, 418 pages. CHANSON, H. (2003). "Sudden Flood Release down a Stepped Cascade. Unsteady Air-Water Flow Measurements. Applications to Wave Run-up, Flash Flood and Dam Break Wave." Report CH51/03, Dept of Civil Eng., Univ. of Queensland, Brisbane, Australia, 142 pages. CHANSON, H., and TOOMBES, L. (2002a). "Energy Dissipation and Air Entrainment in a Stepped Storm Waterway: an Experimental Study." Jl of Irrigation and Drainage Engrg., ASCE, Vol. 128, No. 5, pp. 305-315. CHANSON, H., and TOOMBES, L. (2002b). "Air-Water Flows down Stepped Chutes : Turbulence and Flow Structure Observations." Intl Jl of Multiphase Flow, Vol. 27, No. 11, pp. 1737-1761. CRANK, J. (1956). "The Mathematics of Diffusion." Oxford University Press, London, UK. CROWE, C., SOMMERFIELD, M., and TSUJI, Y. (1998). "Multiphase Flows with Droplets and Particles." CRC Press, Boca Raton, USA, 471 pages. DAVIES, T.R.H. (1988). "Debris Flow Surges - A Laboratory Investigation." Mitteilungen der Versuchsanstalt fur Wasserbau, Hydrologie und Glaziologie, No. 96, ETH-Zurich, Switzerland, 122 pages. DRESSLER, R. (1954). "Comparison of Theories and Experiments for the Hydraulic Dam-Break Wave." Proc. Intl Assoc. of Scientific Hydrology Assemblee Generale, Rome, Italy, Vol. 3, No. 38, pp. 319-328. ESCANDE, L., NOUGARO, J., CASTEX, L., and BARTHET, H. (1961). "Influence de Quelques Parametres sur une Onde de Crue Subite a l'Aval d'un Barrage." ('The Influence of certain Parameters on a Sudden Flood Wave Downstream from a Dam.') Jl La Houille Blanche, No. 5, pp. 565-575 (in French). FUJIMA, K., and SHUTO, N. (1990). "Formulation of Frictions Laws for Long Waves on a Smooth Dry Bed." Coastal Engineering in Japan, Vol. 33, No. 1, pp. 25-47. HOYT, J.W., and TAYLOR, J.J. (1977). "Turbulence Structure in a Water Jet Discharging in Air." Physics of Fluids, Vol. 20, No. 10, Pt. II, Oct., pp. S253-S257. HUNT, B. (1982). "Asymptotic Solution for Dam-Break Problems." Jl of Hyd. Div., Proceedings, ASCE, Vol. 108, No. HY1, pp. 115-126. HUNT, B. (1984). "Perturbation Solution for Dam Break Floods." Jl of Hyd. Engrg., ASCE, Vol. 110, No. 8, pp. 1058-1071. HUNT, B. (1988). "An Asymptotic Solution for Dam Break Floods in Sloping Channels." in "Civil Engineering Practice", Technomic Publ., Editors P.N. CHEREMISINOFF, N.P. CHEREMISINOFF and S.L. CHENG, Lancaster Pen., USA, Lancaster, USA, Vol. 2, Section 1, Chapter 1, pp. 3-11. HUNT, B. (1994). "Newtonian Fluid Mechanics Treatment of Debris Flows and Avalanches." Jl of Hyd. Engrg., ASCE, Vol. 120, No. 12, pp. 1350-1363. JENSEN, A., PEDERSEN, G.K., and WOOD, D.J. (2003). "An Experimental Study of Wave Run-up on a Steep Beach." Jl of Fluid Mech., Vol. 486, pp. 166-188. MANO, A. (1994). "Boundary Layer Developed near Surging Front." Coastal Engineering in Japan, Vol. 37, No. 1, pp. 23-39. 5th International Conference on Multiphase Flow, ICMF'04 Yokohama, Japan, May 30-June 4, 2004 Paper No. 103 NIELSEN, P. (1992). "Coastal Bottom Boundary Layers and Sediment Transport." Advanced Series on Ocean Eng., Vol. 4, World Scientific Publ., Singapore. RAYLEIGH, Lord (1911). "On the Motion of Solid Bodies through Viscous Liquids." Phil. Mag., Vol. 21, pp. 697-711. REIN, M. (1998). "Turbulent Open-Channel Flows : Drop-Generation and Self-Aeration." Jl of Hyd. Engrg., ASCE, Vol. 124, No.1, pp. 98-102. Discussion : Vol. 125, No. 6, pp. 668-670. ROUSE, H. (1937). "Modern Conceptions of the Mechanics of Turbulence." Transactions, ASCE, Vol. 102, pp. 463-543. AMADOR, A., SANCHEZ-JUNY, M., DOLZ, J., SANCHEZ-TEMBLEQUE, F., and PUERTAS, J. (2004). "Velocity and Pressure Field in Skimming Flow in Stepped Spillways." Proc. Intl Conf. on Hydraulics of Dams and River Structures, Tehran, Iran, Balkema Publ. The Netherlands, 8 pages. SCHLICHTING, H., and GERSTEN, K. (2000). "Boundary Layer Theory." Springer Verlag, Berlin, Germany, 8th edition., 707 pages. STOKES, G.G. (1856). "On the effect of Internal Friction of Fluids on the Motion of Pendulums." Trans. Camb. Phil. Soc., Vol. 9, Part II, pp. 8-106. STUTZ, B., and REBOUD, J.L. (2000). "Measurements within Unsteady Cavitation." Experiments in Fluids, Vol. 29, pp. 545-552. WANG, Z.Y. (2002). "Initiation and Mechanism of Two Phase Debris Flow." Proc. Conf. on Flood Defence'2002, Ed. WU et al., Science Press, New York, pp. 1637-1648. WITHAM, G.B. (1955). "The Effects of Hydraulic Resistance in the Dam-Break Problem." Proc. Roy. Soc. of London, Ser. A, Vol. 227, pp. 399-407.
Q-Index Code EX
Additional Notes Paper number 103

 
Versions
Version Filter Type
Citation counts: Google Scholar Search Google Scholar
Created: Mon, 08 Aug 2005, 10:00:00 EST by Hubert Chanson on behalf of School of Engineering