Plenary Lecture
Some Theoretical and Numerical Aspects of the Numerical Simulation of Three-dimensional Free-surface Flows in Complex Geometries
Professor Giovanni Cannata
Hydraulics at the Faculty of Engineering
Sapienza University of Rome
Rome, ITALY.
E-mail: giovanni.cannata@uniroma1.it
Abstract: A large number of problems of hydraulic and environmental engineering deal with free surface flows. In this regard, some examples are the flow of water in a river, the propagation of waves in a coastal region, the flooding resulting from a collapse of dam or the sediment transport phenomena in fluvial and marine environments. Most of these phenomena, that are difficult to reproduce in a laboratory, can be simulated by numerical models. The most challenging issue of the numerical simulation of these flows is the fact that they usually occur in natural environments where the complex boundaries of the physical domain occupied by the fluid are moving boundaries. A recent approach in the numerical simulation of 3D free-surface flows is based on expressing the governing equations in integral form over moving control volumes. In this lecture, some theoretical and numerical aspects of this advanced approach are discussed. In particular, the derivation of three-dimensional motion equations in moving control volumes and some numerical application of the resulting equations are shown.
Brief Biography of the Speaker: Curriculum Vitae of Giovanni Cannata
Education
2000: Degree in Environmental Engineering, “Sapienza” University of Rome.
2005: PhD in Hydraulics and Environmental Hydraulics, “Sapienza” University of Rome.
2006-2008: Post-doctoral research activity in Computational Hydraulics, at the Department of Civil, Constructional and Environmental Engineering, “Sapienza” University of Rome.
2008-present Assistant Professor in Hydraulics at the Faculty of Engineering, “Sapienza” University of Rome.
Teaching activity
Teaching involves master courses in Applied Hydraulics, Computational Hydraulics, River Hydraulics, and Ph.D. thesis supervision
Scientific activity.
Continuum Mechanics and turbulence models. Turbulent closure relations in Large Eddy Simulations. Two-phase flows. Computational hydraulic. Numerical simulation of depth-averaged and three-dimensional flows. Shock-capturing numerical schemes for free surface flows. Numerical integration of the contravariant form of the Navier-Stokes equations in time-dependent curvilinear coordinate systems.