Flowing foams and dense emulsions

Convenor: Benjamin dollet, Co-convenor: Sylvie Cohen-Adad

The focus of the "Flowing foams and dense emulsions" mini-symposium will be on recent experimental, theoretical and numerical advances concerning the flows in foams and highly concentrated emulsions. Emphasis will be put on the link between macroscopic behavior and the underlying microscopic phenomena at the level of single drops or bubbles, films or interfaces. Contributions on these systems including their rheology, their stability or their drainage are warmly welcome.


Fluid Mechanics of Clouds

Convenor: Jörg Schumacher, Co-convenor: Juan Pedro Mellado

Clouds remain one of the main sources of uncertainty in climate research and numerical weather prediction, partly because our understanding of the fluid mechanics of clouds is still far from being complete. Despite important advances during the last decades, we still need to better comprehend the interaction among the complex multi-scale phenomena that determines the formation, evolution and dessication of clouds under very different large-scale conditions. These phenomena include shear- and buoyancy-driven turbulence, stratified turbulence, entrainment, radiation, evaporation, and cloud micro-physics, and involve length scales that extend from a few kilometers to a few micrometers. The aim of this mini-symposium is to present and discuss recent advances in the physical understanding and representation of these phenomena using theoretical, numerical and experimental approaches, with emphasis on fluid mechanical aspects of cloud turbulence.


Splashes and Slamming on Structures

Convenor: Alexander Korobkin, Co-convenor, Alessandro Iafrati

The aims of this mini-simposium are to review and discuss the state-of-art research in the fields of droplet impact, ship slamming, and other related areas involving fluids, solids and their interaction. Physical effects on splashes, liquid impact loads and phase transition are in the focus of this event.


Laminar-turbulent boundary-layer transition mechanisms at hypersonic flow conditions

Convenor: Christian Stemmer. Co-convenor: Wolfgang Schröder

This minisymposium will present work on laminar-turbulent transition at high-speed conditions typical for high-velocity atmospheric flight as well as for atmospheric re-entry conditions. Contributions are encouraged covering experimental, stability and numerical simulation work. A wide range of transition scenarios like classical linear and non-linear stability dominated by vorticity and acoustic modes, roughness induced as well as transient growth triggered transition shall be presented.


Suspension dynamics

Convenor: Federico Toschi. Co-convenor: Luca Brandt

The aim of this session is to provide an overview of ongoing research on the dynamics of suspensions of rigid and deformable particles from the laminar to the turbulent flow regime. 


Fluid Mechanics of Fuel Cells

Convenor: Marcos Vera, Co-convenor: Marc Prat

Energy demand has become one of the most serious concerns of modern society due to the problems related with greenhouse gas emissions and the depletion of fossil fuels. With the emergence of renewable energy sources, hydrogen is expected to play an important role as future energy vector, fuel cells being the leading candidates to provide efficient and clean energy conversion during the XXI century. In the last decades, significant progress has been made toward meeting the challenging cost and performance targets required for the widespread use of fuel cells in different applications. However, further improvements are still needed, some of them closely related to Fluid Mechanics.

The aim of this mini-symposium is to provide an international forum of discussion and dissemination of the latest research developments concerning the fluid dynamical aspects of fuel cells. Novel advances in mathematical modeling, numerical simulation, and experimental techniques will be presented and discussed, with special emphasis on Polymer Electrolyte Membrane Fuel Cells (PEMFCs). The topics to be covered will include, but are not limited to, novel experimental techniques (e.g., neutron imaging or X-ray tomography) for the investigation of water management issues, multi-physics and multi-scale (e.g., continuum vs. pore-scale) modeling of two-phase transport phenomena at cell component level and their interfaces, and the optimization of the catalyst loading using novel fluid dynamic techniques (e.g., electrospray deposition). Other fluid dynamical aspects of fuel cell operation, particularly those related with system durability, will also be welcomed. The Mini-Symposium is targeting academic researchers and engineering practitioners to bring together new interdisciplinary ideas leading to deeper knowledge about these and other related problems."