Variable Density Turbulent Flows

ERCOFTAC Special Interest Group # 24


Prof. F. Anselmet

Institut de Recherche sur les Phénomènes Hors d'Equilibre (IRPHE)
49, Rue Joliot-Curie - BP 146
13384 MARSEILLE Cedex 13

Tel: +33.(0)
Fax: +33.(0)
Web :   (IRPHE-Marseille)

Organising Committee (in the process of being reorganized)

Research Topics

This SIG is devoted to analysing the structure of low speed turbulent flows in which density is strongly varying. Density variations mainly concerned here may result from heat or mass transfer or from chemical reactions.

These turbulent flows are of fundamental interest because the conservation equations for thermodynamics, mass and momentum are linked together. Another interesting fundamental aspect is that such flows - in the jet or wake configuration - can develop self-excited oscillations related to absolute instability of the nozzle region. The understanding of these flows is an important problem in its own right but it is also the key to an improved physical understanding of combusting flows where the coupling between chemical reactions and aerodynamics occurs through local density fluctuations due to chemical heat release and composition changes. These density variations occur in many practical situations such as in the aerospace industry, in pollution and environmental problems, in engine combustion chambers, and so on.

One of the aims of the SIG is to stimulate collaboration between experimental, theoretical and numerical approaches of the problem. Another goal is to bring together researchers specialised in turbulence and those involved in combustion.

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