Ven
27
Giu
Seminari e Convegni
Scalars statistics and extreme events in non-equilibrium systems | with Professor Danaila
On Friday, June 27 at 11:30 a.m., the Department of Applied Science and Technology-DISAT of Politecnico will host the seminar: "Scalars statistics and extreme events in non-equilibrium systems", that will be hosted in Aula A1 and will be taught by professor Luminita Danaila from the Laboratory ‘Continental and Coastal Morphodynamics’ at the University of Rouen Normandy.
Scale-by-scale scalar statistics are theoretically investigated from first principles, with particular emphasis on higher-order moments, which reflect rare or extreme events. The explicit dependence of scalar statistics on large-scale gradients, advection, waves, and coherent structures is highlighted. The investigated scalar quantities include kinetic energy, temperature, humidity, and salinity.
Examples illustrating these phenomena are provided for various flow conditions, including:
Biography
Luminita Danaila is a professor of physics at the University of Rouen Normandy, France, with a long conjoint professor appointment at the University of Newcastle, Australia (2012-2024).
She received her PhD in 1998 from Aix-Marseille University and was awarded the 1999 Thesis Prize of the French Association of Mechanics. She received the 1995 ‘Amelia Earhart Fellowship Award’ from the Zonta International Foundation. In 2021, she received, with her group, the ‘Award of Distinguished Paper’ in the Turbulent Flames Colloquium for the 38th International Symposium on Combustion’, for the merit of importing knowledge and methodology from turbulence to combustion. She was the Director of the French National Group of Research in Turbulence (GdR ‘Turbulence’) from 2012 to 2016, and coordinator of the France-West Pilot Center of ERCOFTAC (2006-2019). She is currently Associate Editor for ‘Physical Review Fluids’.
Her research focuses on theoretical, experimental, and numerical investigation of turbulence, emphasizing the mixing of passive and active scalars, variable viscosity and density flows, superfluid
turbulence, and, recently, atmospheric turbulence. Her research interests include flow and heat applications for green energies and sustainable energy management (phase change materials, wind turbines).
Scale-by-scale scalar statistics are theoretically investigated from first principles, with particular emphasis on higher-order moments, which reflect rare or extreme events. The explicit dependence of scalar statistics on large-scale gradients, advection, waves, and coherent structures is highlighted. The investigated scalar quantities include kinetic energy, temperature, humidity, and salinity.
Examples illustrating these phenomena are provided for various flow conditions, including:
- Direct Numerical Simulation (DNS) of homogeneous isotropic turbulence subjected to mean scalar gradients.
- Quantum turbulence as described by the Hall–Vinen–Bekharevich–Khalatnikov (HVBK) model.
- Atmospheric flows simulated numerically using the Weather Research and Forecasting (WRF) model with Large Eddy Simulation (LES). This example explicitly addresses heat waves over France.
Biography
Luminita Danaila is a professor of physics at the University of Rouen Normandy, France, with a long conjoint professor appointment at the University of Newcastle, Australia (2012-2024).
She received her PhD in 1998 from Aix-Marseille University and was awarded the 1999 Thesis Prize of the French Association of Mechanics. She received the 1995 ‘Amelia Earhart Fellowship Award’ from the Zonta International Foundation. In 2021, she received, with her group, the ‘Award of Distinguished Paper’ in the Turbulent Flames Colloquium for the 38th International Symposium on Combustion’, for the merit of importing knowledge and methodology from turbulence to combustion. She was the Director of the French National Group of Research in Turbulence (GdR ‘Turbulence’) from 2012 to 2016, and coordinator of the France-West Pilot Center of ERCOFTAC (2006-2019). She is currently Associate Editor for ‘Physical Review Fluids’.
Her research focuses on theoretical, experimental, and numerical investigation of turbulence, emphasizing the mixing of passive and active scalars, variable viscosity and density flows, superfluid
turbulence, and, recently, atmospheric turbulence. Her research interests include flow and heat applications for green energies and sustainable energy management (phase change materials, wind turbines).