User login

 

 

 

 

This site has been transferred: http://web.units.it/dottorato/esfm/

 

 

 

Cycle: 
23 cycle
Tutor: 
Prof. Vincenzo Armenio
Advisor: 
Prof. Vincenzo Armenio
Curriculum, Annual Report, Thesis: 
Current Position: 

Fellow researcher

Scientific Activity: 

In the previous year Andrea's work focused on the implementation and validation of the stratification model in the in-house code named LES-AIR. The buoyancy force is triggered by both temperature and humidity gradients. The validation has been carried out in a Atmospheric Boundary Layer problem comparing the results against field data. In a second stage the same model has been nested with the large-scale model WRF. Recently Andrea started a new project related to Oil Spill problems. An Oil slick model is under development. It will be a module of the well established in-house code LES-COAST. The Oil slick model consider the horizontal spreading of the surface oil under the action of sea current and wind, and the dispersion of the oil droplets in the water column. The main oil weathering effects also will be included.

Background: 

Andrea's research interests regard CFD for industrial processes. In his Master thesis he dealt with magnetic braking of conductive fluids in collaboration with Danieli Automation SpA. This challenging task can be tackle by the Magneto Hydro Dynamic theory, MHD in brief. This branch of Fluid Mechanics studies the subtle coupling between the Navier-Stokes with the Maxwell's set of equations. His PhD project is focused on Two-Phase flows, in particular on the evaporation/condensation process in a closed tub. These flows are very important in a broad range of industrial applications but not yet well understood. If the liquid phase is lying on a surface, the conditions of the substrate as well of the surrounding gas phase will determine evaporation or condensation to occur, so that the latent heat will be the ruling term in the thermal coupling among the media. More over the gas flow will be greatly influenced by the buoyancy due to both vapor concentration and temperature variations in the volume. The liquid spreads over surface differently depending on the physical characteristics of the surface itself and of the liquid, in form of sessile drops, patches, films each with its own dynamic. The direct computations of all the features listed unfeasible at the present time for any engineering purposes. Andrea research is meant to find suitable strategies and simplified models to cope with these issue

Publications: 
  • P. Sosnowsky, A.Petronio and V. Armenio, Numerical model for thin liquid film with evaporation and condensation on solid surfaces in systems with conjugated heat transfer, International Journal of Heat and Mass Transfer, Volume 66, Pages 382–395, November 2013.
  • Petronio, A., Roman, F., Nasello, C., Armenio, V., 2013. Large-eddy simulation model for wind driven sea circulation in coastal areas. Nonlin. Processes, Geophys. 20, 1095–1112.
Conferences: 
  • Pin G., Petronio A. Electromagnetic flow measurement of a conductive fluid in a channel with finite width and conductivity International Workshop on Numerical Simulations of Magnetohydrodynamic Flows, Karlsruhe, Germany, November 14-15, 2007
  • Evaporation/condensation around a wetted cylinder confined between two parallel walls, Petronio A., Padovan L., Buligan G., Armenio V., Proc. 12th WORKSHOP ON TWO-PHASE FLOW PREDICTIONS, Halle (Saale), Germany March 22-25, 2010. Further informations and the online paper can be found at http://www-mvt.iw.uni-halle.de/
  • Large eddy simulation model of the ABL with thermal and humid stratification effects A. Petronio, F. Stel, D. Giaiotti, G. Mattassi, and V. Armenio EMS Annual Meeting Abstracts Vol. 8, EMS2011-662-1, 2011, 11th EMS / 10th ECAM
  • LARGE-EDDY SIMULATION MODEL FOR URBAN AREAS WITH THERMAL AND HUMID STRATIFICATION EFFECTS, A. Petronio, F. Roman, V. Armenio, F. Stel & D. Giaiotti, Direct and Large-Eddy Simulation 9 April 3-5, Dresden, Germany.
  • Zanier G., Petronio A., Roman F., Armenio V., 2014. High Resolution Oil Spill Model for Harbour and Coastal Areas. Book of Abstracts of the Third IAHR Europe Congress, Porto, Portugal, 14-16 April, 2014.