Titlebook: IUTAM Symposium on Variable Density Low-Speed Turbulent Flows; Proceedings of the I Louis Fulachier,John L. Lumley,Fabien Anselmet Conferen

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https://doi.org/10.1007/978-94-011-5474-1atmosphere; chemical engineering; heat transfer; mixing; turbulent flow; air pollution and air quality

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Fluid Mechanics and Its Applicationshttp://image.papertrans.cn/i/image/460651.jpg

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Global Self-Excited Oscillations in a Two-Dimensional Heated Jet: A Numerical SimulationThe aim of this work (Sers 1995) was to develop a numerical methodology to gain insight in the low-density jet spatially developing dynamic with a . approach. Numerical simulations are shown to differentiate convective and absolute instability regimes and to capture a self-excited global mode in an open flow: the 2D hot jet.

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Turbulent Kinetic Energy in Variable Density Jets and the Modelling IssueThe aim of the present paper is to gain insight in the way density variations modify the turbulent-kinetic-energy field in shear flows such as jets and mixing layers. Some consequences on modelling are then examined.

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Influence of Density Contrast on Instability and Mixing in Coaxial Jetsthe experimental study of Camano & Favre-Marinet (1994) and the numerical simulation of Reynier & Ha Minh (1994) show that a high momentum ratio between the two jets leads to the presence of a recirculation zone on the axis near the nozzle.

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A Wake behind a Heated Cylinder at Small Mach Numbers: Bifurcations of the Vortex Street and Potentioustic sensing of the wake. It is demonstrated experimentally that the characteristics of the scattered sound can be used to determine the parameters of the vortex street, including the spatial period and repetition rate of vortices, the circulation of velocity, and the heat transferred by vortices.

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IUTAM Symposium on Variable Density Low-Speed Turbulent Flows978-94-011-5474-1Series ISSN 0926-5112 Series E-ISSN 2215-0056