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Influence of density variations on the structure of low-speed turbulent flows: a report on Euromech 237

Published online by Cambridge University Press:  26 April 2006

L. Fulachier ,
R. Borghi ,
F. Anselmet  and
P. Paranthoen
L. Fulachier
Affiliation:
Institut de Mécanique Statistique de la Turbulence, Université d'Aix-Marseille II, UM 033/CNRS, 13003 Marseille, France.
R. Borghi
Affiliation:
Complexe de Recherche Interprofessionnel en Aérothermochimie, UA 230/CNRS, Université de Rouen, 76130 Mont-Saint-Aignan, France.
F. Anselmet
Affiliation:
Institut de Mécanique Statistique de la Turbulence, Université d'Aix-Marseille II, UM 033/CNRS, 13003 Marseille, France.
P. Paranthoen
Affiliation:
Complexe de Recherche Interprofessionnel en Aérothermochimie, UA 230/CNRS, Université de Rouen, 76130 Mont-Saint-Aignan, France.
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Abstract

The European Mechanics Colloquium number 237 was held at the Institut de Mécanique Statistique de la Turbulence (Université d'Aix-Marseille II) from 18 to 21 July 1988. This was the first meeting to consider the influence of density variations on turbulent flows for both non-reacting and reacting flows in a variety of configurations. Several new experiments, computational models and theoretical analyses were presented for non-reacting flows. All these approaches showed the marked effects of density variations on coherent structures in turbulent shear flows. It was found that the approximate models used for turbulent Reynolds stresses in homogeneous flows do not need to be changed for the mean flow field but predictions for variances and correlations are still rather uncertain: in fact experimental results providing such information in variable-density flows are rare. The special problem of measuring turbulence in flows with density variations was discussed. In the discussions it was agreed that there are in fact strong similarities in the effects of density gradients on the dynamics of non-reacting flows and reacting flows despite the differences in the distributions of density gradients. Participants at the meeting from industry emphasized the importance of these flows to many different kinds of industrial and environmental problems.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 203 , June 1989 , pp. 577 - 593
Copyright
© 1989 Cambridge University Press

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References

Ambartsoumian, E. N., Glushko, G. S. & Gumilevski, A. G. Influence of Archimedes forces on turbulent momentum transfer.
Anselmet, F., Schiestel, R., Bahraoui, E. M., Zahibo, I. & Fulachier, L. Experimental investigation and turbulent flux modelling of a strongly heated turbulent jet.
Antonia, R. A., Browne, L. W. B., Bisset, D. K. & Fulachier, L., 1987 A description of the organized motion in the turbulent far wake of a cylinder at low Reynolds number. J. Fluid Mech. 184, 423.Google Scholar
Auton, T. R., Hunt, J. C. R. & Prud'Homme, M. 1988 The force exerted on a body in inviscid unsteady non-uniform rotational flow. J. Fluid Mech. 197, 241.Google Scholar
Béguier, C., Dekeyser, I. & Launder, B. E., 1978 Ratio of scalar and velocity dissipation time scales in shear flow turbulence. Phys. Fluids 21, 307.Google Scholar
Borghi, R. A review on the modelling of turbulent flows with variable density, in low velocity flows with and without combustion.
Borghi, R.: 1985 Recent Advances in the Aerospace Sciences. Corrado Cesci. Plenum.
Britter, R. E.: 1989 Atmospheric dispersion of dense gases. Ann. Rev. Fluid Mech. 21, 317.Google Scholar
Brown, G. L. & Rebollo, R. M., 1972 A small, fast response probe to measure composition of a binary gas mixture. AIAA J. 10, 649.Google Scholar
Brown, G. L. & Roshko, A., 1974 On density effects and large structure in turbulent mixing layer. J. Fluid Mech. 64, 775.Google Scholar
Bruel, P. & Champion, M. Turbulent reactive flow in a 2-D channel with wall injection of the reactant mixture.
Brun, G., Buffat, M. & Jeandel, D. Finite element simulation of strongly heated turbulent flows. Application to wall flows.
Bruno, C., Galfetti, L. & Belli, M. Effects of density change on reactive turbulent flow in an axisymmetrical combustor.
Chassaing, P.: 1979 Mélange turbulent de gaz inertes dans un jet de tube libre. Thèse de Doctorat ès-Sciences, Toulouse, INPT no. 42.
Chassaing, P. & Chibat, M. Second order modelling of a variable density mixing layer and jets.
Cheng, R. K. & Ng, T. T., 1982 Some aspects of strongly heated turbulent boundary layer flow. Phys. Fluids 25, 1333.Google Scholar
Dibble, R. W., Hartmann, V. & Schefer, R. W., 1987 Conditional sampling of velocity and scalars in turbulent flames using simultaneous LVD-Raman scattering. Expts Fluids 5, 103.Google Scholar
Durao, D. F. G., Heitor, M. V. & Moreira, A. L. N. The stabilization of turbulent flames in multi-jet burners.
Escudie, D. Evolution of the turbulent kinetic energy of a Kármán vortex street through a laminar flame front.
Favre, A.: 1969 Statistical equations of turbulent gases. In Problems of Hydrodynamics and Continuum Mechanics, pp. 237–266. Society for Industrial and Applied Mathematics, Philadelphia.
Fiedler, H. E.: 1988 Coherent structures in turbulent flows. Prog. Aero. Sci. 25, 231.Google Scholar
Glushko, G. S.: 1974 The model of turbulent mixing in shear flows. Turbulentniye Techcniya, p. 56. Moskva: Nauka.
Green, H. G. & Whitelaw, J. H. Velocity and concentration characteristics of the near-field of round jets.
Haroutunian, V., Ince, N. & Launder, B. E., 1988 Turbulent time scale ratios in plumes. In 3rd Biennal Colloquium on Computational Fluid Dynamics, UMIST, Manchester.
Haworth, D. C. & Pope, S. B., 1987 A p.d.f. modeling study of self-similar turbulent free shear flows. Phys. Fluids 30, 1026.Google Scholar
Herwig, H. An asymptotic approach to turbulent compressible flow.
Hinze, J. O.: 1959 Turbulence. McGraw Hill.
Huerre, P. & Monkewitz, P. A., 1985 Absolute and convective instabilities in free shear layers. J. Fluid Mech. 159, 151.Google Scholar
Hunt, J. C. R. Analysing effects of density gradients in eddy motions by considering fluid ‘lumps’ or small perturbations.
Hunt, J. C. R.: 1987 Vorticity and vortex dynamics in complex turbulent flows. In Proc. CANCAM (Canadian Congress of Applied Mechanics), Trans. Can. Soc. Mech. Engrs 11, 21.
Hunt, J. C. R., Auton, T. R., Sene, K., Thomas, N. H. & Kowe, R., 1989 Bubble motions in large eddies and turbulent flows. Proc. Conf. Transient Phenomena in Multiphase Flow, Yugoslavia. Hemisphere.
Jones, W. P.: 1979 Models for turbulent flows with variable density and combustion. VKI Lecture Series, 1979–2.Google Scholar
Jones, W. P. & McGuirk, J. J., 1979 Mathematical modelling of gas-turbine combustion chambers. AGARD CP-275.Google Scholar
Jones, W. P. & Musonge, P., 1988 Closure of Reynold stress and scalar flux equations. Phys. Fluids 31, 3589.Google Scholar
Jones, W. P. & Pascau, A. Calculation of variable density flows with a second moment closure.
Konrad, J. H.: 1976 An experimental investigation of mixing layer in two-dimensional turbulent shear flows with applications to diffusion-limited chemical reactions. Ph.D. thesis, California Institute of Technology.
Kuznetzov, V. R.: 1979 Estimate of the correlation between pressure pulsations and the divergence of the velocity in subsonic flows of variable density. Translated from Izv. Akad. Nauk SSR, Mekh. Zhid. i Gaza 3, 4.Google Scholar
Lana, F. & Viollet, P. L., 1987 3D computation of the mixing of a plasma jet in a cold flow. Proc. 8th Intl Symp. on Plasma Chemistry, Tokyo.Google Scholar
Lapp, M. & Penney, C. M., 1981 Analysis of Raman and Rayleigh scattered radiation. In Methods of Experimental Physics, vol. 18, p. 408. Academic.
Leipertz, A., Kowalewski, G. & Haumann, J. Gas density structures by laser Rayleigh techniques.
Libby, P. A.: 1977 Studies in Convection, vol. 2. Academic.
Libby, P. A. & Bray, K. N. C. 1981 Countergradient diffusion in premixed turbulent flames. AIAA J. 19, 205.Google Scholar
Long, M. B., Chu, B. T. & Chang, R. K., 1981 Instantaneous dimensional gas concentration measurements by light scattering. AIAA J. 19, 1151.Google Scholar
Lummer, M. Direct numerical simulation of a plane heterogeneous mixing layer.
Mansour, N. N., Kim, J. & Moin, P., 1987 Near-wall k-ε turbulence modeling. 6th Symp. Turbulent Shear Flows, Toulouse, p. 17–4.Google Scholar
McMurty, P. A., Riley, J. J. & Metcalfe, R. W., 1989 Effects of heat release on the large-scale structure in turbulent mixing layers. J. Fluid Mech. 199, 297.Google Scholar
Minh, H. Ha., Launder, B. E. & MacInnes, J., 1982 The turbulence modelling of variable density flows - a mixed-weighted decomposition. In Turbulent Shear Flows (ed. L. J. S. Bradbury, F. Durst, B. E. Launder, F. W. Schmidt & J. H. Whitelaw), p. 291. Springer.
Monkewitz, P. A., Bechert, D. W. & Barsikow, B. Self-excited resonances and mixing in heated jets.
Morel, T. & Mansour, N. N., 1982 Modeling of turbulence in internal combustion engines. SAE Tech. paper Series 820040. Intl Congress and exposition, Detroit.
Namazian, M., Schmitt, R. L. & Long, M. B., 1988 Two wave length single laser CH and CH4 imaging in a lifted turbulent diffusion flame. Appl. Opt. 27, 3597.Google Scholar
Nottmeyer, K. & Fiedler, H. E. Experimental study of turbulence in an inhomogeneous mixing layer.
Panchapakesan, N. R. & Lumley, J. L. Measurements and modelling in a jet with strong density fluctuations.
Perry, A. E. & Watmuff, J. H., 1983 The phase-averaged large-scale structures in three-dimensional turbulent wakes. J. Fluid Mech. 103, 35.Google Scholar
Pitts, W. M.: 1986 Effects of global density and Reynolds number variations on mixing in turbulent, axisymmetric jets. Rep. NBSIR 86–3340.Google Scholar
Pitts, W. M. & McCaffrey, B. J., 1986 Response behaviour of hot wires and films to flows of different gases. J. Fluid Mech. 169, 465.Google Scholar
Rebollo, R. M.: 1973 Analytical and experimental investigation of a turbulent mixing layer of different gases in a pressure-gradient. Ph.D. thesis, California Institute of Technology.
Rey, C. & Rosant, J. M. Influence of density variations on turbulence spectra of low speed heated flows.
Rottman, J. W., Simpson, J. E. & Stansby, P. K., 1987 The motion of a cylinder of fluid released from rest in a cross-flow. J. Fluid Mech. 177, 307.Google Scholar
Samuelsen, G. S., la Rue, J. C. & Seiler, E. T. 1984 Instantaneous two-component laser anemometry and temperature measurements in a complex reacting flow. Proc. Second Intl Symp. on Applications of Laser Anemometry to Fluid Mechanics, Lisbon, p. 11–3.Google Scholar
Sarh, B. & Gokalp, I. An experimental investigation of the velocity and temperature fields in isothermal, non-isothermal and reacting turbulent rectangular jets.
Shih, T. H., Lumley, J. L. & Janicka, J., 1987 Second-order modelling of a variable-density mixing layer. J. Fluid Mech. 180, 93.Google Scholar
So, R. M. C., Ahmed, S. A. & Mongia, H. K., 1984 An experimental investigation of gas jets in confined swirling air flow. NASA CR-3832.Google Scholar
Stepowski, D., Labbaci, K., Cabot, G. & Trinite, M. Pseudo-self-similarity in the development of a low density turbulent jet issuing in a coflow air.
Thünker, R. & Nitsche, W. Investigations on turbulent transport mechanism in strongly non-adiabatic turbulent flows.
Vandromme, D.: 1980 Turbulence modeling in variable density flow. Ph.D. thesis, Free University of Brussels.
Viollet, P. L., Lana, F., Olivier, J. C. & Flamain, D. A study of a three-dimensional flow with large density variations.
Way, J. & Libby, P. A., 1970 Hot-wire probes for measuring velocity and concentration in helium-air mixtures. AIAA J. 8, 976.Google Scholar
Yilmaz, L. Turbulent mixing flows with density variations at side weirs.