Turbulent Mixing and Beyond

International Conference

August 18-26, 2007
The Abdus Salam International Centre for Theoretical Physics, Trieste, Italy





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Objectives of the Conference and Outline of Themes

The goals of the Conference are to expose the generic problem of Turbulence and Turbulent Mixing in Unsteady Flows to a wide scientific community, to promote the development of new ideas in tackling the fundamental aspects of the problem, to assist in application of novel approaches in a broad range of phenomena, where the turbulent processes occur, and to have a potential impact on technology.

The Conference provides the opportunity to bring together scientists from the areas, which include but not limited to high energy density physics, plasmas, fluid dynamics, turbulence, combustion, material science, geophysics, astrophysics, optics and telecommunications, applied mathematics, probability and statistics, and to have their attention focused on the long-standing formidable task.

The Turbulent Mixing and Turbulence in Unsteady Flows, including multiphase flows, plays a key role in a wide variety of phenomena, ranging from astrophysical to nano-scales, under either high or low energy density conditions. Inertial confinement and magnetic fusion, light-matter interaction and non-equilibrium heat transfer, properties of materials under high strain rates, strong shocks, explosions, blast waves, supernovae and accretion disks, stellar non-Boussinesq and magneto-convection, planetary interiors and mantle-lithosphere tectonics, premixed and non-premixed combustion, oceanography, atmospheric flows, unsteady boundary layers, hypersonic and supersonic flows, are a few examples to list. A grip on unsteady turbulent processes is crucial for cutting-edge technology such as laser micro-machining and free-space optical telecommunications, and for industrial applications in areas of aeronautics and aerodynamics.

Unsteady Turbulent Processes are anisotropic, non-local and multi-scale, and their fundamental scaling, spectral and invariant properties differ from those of classical Kolmogorov turbulence. The singular aspect and similarity of the mixing dynamics are interplayed with fundamental properties of the Euler and compressible Navier-Stokes equations, with the problem sensitivity to the boundary conditions at the discontinuities and the initial conditions, and with its stochastic description. The state-of-the-art numerical simulations of the multi-phase non-equilibrium dynamics suggest new methods for capturing discontinuities and singularities and shock-interface interaction, for predictive modeling of the multi-scale dynamics in fluids and plasmas, for error estimate and uncertainty quantification as well as for novel data assimilation techniques.

The Conference is structured to encourage the participants’ communications with experts from different fields, to promote the exchange of ideas and suggestion of open problems, and to impel the discussions of rigorous mathematical issues, theoretical approaches and state-of-the-art numerical simulations along with advanced experimental techniques and technological applications. The sessions are intended to run sequentially.

The Organizing Committee hopes the International Conference "Turbulent Mixing and Beyond" will serve to advance the state-of-the-art in understanding of fundamental physical properties of turbulent mixing and turbulence in unsteady flows and will potentially have an impact on predictive modeling capabilities, physical description and, ultimately, control of the complex turbulent processes.

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