Foto del docente

Stefania Falfari

Associate Professor

Department of Industrial Engineering

Academic discipline: IIND-06/A Fluid Machinery

Curriculum vitae

1999: Degree in Mechanical Engineering, University of Bologna.
Qualification as an engineer.

2000: Winner of a scholarship for the XV PhD in Machine and Energy Systems Engineering.

2001: 6-month internship at the Engine Research Center in Madison, Wisconsin, with Prof. R.D. Reitz.

2003:
- Title of Doctor of Philosophy in Machine and Energy Systems Engineering. Thesis title: “Development of methodologies for the simulation of high-pressure and high-speed actuation injectors” in collaboration with Magneti Marelli Powertrain Systems of Bologna.
- Winner of the competition for a two-year post-doctoral scholarship in the field of Industrial Engineering at the University of Bologna.

2004: Winner of the competition for a researcher position in the scientific disciplinary sector ING-IND 08 (Fluid Machines) for the II Faculty of Engineering, Forlì campus.

2005: Started as an unconfirmed researcher at the II Faculty of Engineering, Forlì campus.

Since 2005, she has been a substitute teacher of various courses related to the scientific disciplinary sector ING-IND/08 at the Forlì campus.

2008: Confirmed in the role as a permanent researcher.

2021, she is an associate professor in fluid machines.

TEACHING

Over the years she has held occasional teaching hours for the professors Prof. Piero Pelloni and Prof. Gian Marco Bianchi in the courses pertaining to the Scientific Disciplinary Sector ING-IND/08.


Since 2005 she has been a substitute teacher for the courses of “Experimentation laboratory on machines and energy systems L and LS” held at the University of Bologna for the first and second level degree course in Energy Engineering, of “Experimentation on machines L” for the first level degree course in Mechanical Engineering of the second Faculty of Engineering based in Forlì, of “Mechanical and thermal measurement laboratory L” for the first level degree course in Mechanical Engineering of the second Faculty of Engineering based in Forlì.


In the academic year 2009-2010 she was a substitute teacher of the course "Energy Systems LM", which is a component of the integrated course "Energy Systems and Machines LM" for the master's degree in mechanical engineering at the II Faculty of Engineering, Forlì campus. She also taught for a total of 3 CFU out of a total of 9 CFU for the course "Advanced Propulsion Systems LM" for the master's degree in aerospace engineering at the II Faculty of Engineering, Forlì campus.


Since the academic year 2010-2011 she has been a substitute teacher of the course "Energy Systems LM", which is a component of the course "Energy Systems and Machines LM" for the master's degree in mechanical engineering at the II Faculty of Engineering, Forlì campus. He also teaches for a total of 3 CFU in the field of basic energy systems for the three-year degree in aerospace engineering at the II Faculty of Engineering, Forlì campus.


Since the Academic Year 2016/17 he has been a substitute teacher for the course "Energy Systems and Machines LM", module 1 and module 2.


Since the Academic Year 2021/22 he has been a teacher for the courses "Energy Systems and Machines LM", module 1 and module 2 in Forlì (Master's Degree in Mechanical Engineering) and "Machines T" module 2 for the three-year degree in energy engineering in Bologna.


Since the Academic Year 2023/24 he has been a teacher for the courses:


- B2373 - MACHINES AND SUSTAINABLE ENERGY SYSTEMS - 9 cfu for the Master's Degree in Mechanical Engineering for Sustainability in Forlì.


- B2081 - CARDIOVASCULAR COMPUTATIONAL SIMULATION M - 3 credits, component of the integrated course CARDIOVASCULAR BIOMECHANICS M C.I., for the master's degree in Mechanical Engineering in Bologna.

RESEARCH

Until 2024, the research activity has always been carried out in the field of fluid machines (ING-IND/08 and subsequently IIND-06/A). In particular, she collaborated with VM Motori in the study of the performance of first-generation Common Rail injectors. Subsequently, with Magneti Marelli Powertrain Systems of Bologna, she contributed to the development project of a new latest-generation Common Rail injection system for small-displacement Diesel engines. Over the years, she has also dedicated herself to the development of one-dimensional models for the modeling of hydraulic gear pumps, forks for motorcycle applications, manual oleopneumatic inserting and riveting machines. She has also dealt with the three-dimensional modeling of the combustion process, with particular interest in the ignition process in gasoline engines. In recent years, she has been involved in:

1. Dynamic analysis of the intake and exhaust processes in gasoline engines, aimed at maximizing filling and minimizing pumping work.

2. Study of the combustion process for gasoline engines, with particular attention to the predictive modeling of the onset of the knocking process.

3. CFD analysis of water injection in the latest generation GDI engines, aimed at containing the temperature of the charge at IVC and TDC.

4. CFD analysis of modern Miller/Atkinson cycles applied to modern turbo-compressed GDI engines.

5. Thermal analysis of a methanator.

6. Fluid-thermodynamic study of latest generation 'SACI' type gasoline engines.

7. Analysis of the orientation during assembly of a PFI injector to minimize cold polluting emissions for motorcycle applications.

8. Study of GCI combustion and related injection process.

9. Chemical kinetic simulations aimed at defining the laminar flame velocity and the auto-ignition time for mixtures of different fuels (e.g. hydrogen, methane, ammonia) in operating conditions of interest for motorsports.

10. Analysis of the evaporative process of lubricating oil in latest-generation internal combustion engines.

11. Well-to-Miles energy analysis of modern powertrains.

12. Use of hydrogen in modern combustion engines.

13. 1D modeling of the fuel cell hybrid powertrain.

14. Study of the NOTIONAL NOZZLE in highly under-expanded gaseous jets (hydrogen).

15. 0D model of emptying a hydrogen tank at 700 bar.

16. CFD analysis of the TPRD for applications with hydrogen stored at 700 bar.

17. Analysis of the "explosion" of hydrogen jets coming out of a TPRD.

18. Development of an internal combustion engine coupled to a solid fuel cell (SOFC) for naval applications (ferries):
- from the SOFC exhaust the engine receives a defined flow of Anod Off-Gases (AOGs), containing small percentages of hydrogen, carbon monoxide and carbon dioxide,
- definition of the chemical characteristics of the fuel used (methane, ammonia), with and without hydrogen (contained in the AOGs and which can act as an accelerant for a very lean combustion),
- optimization of the engine dimensions based on the available space and the performance related to the type of "trip", in terms of power but also of consumption containment (therefore maximization of efficiency),
- study of the engine geometry (with active pre-chamber) with CFD modeling,
- dynamic coupling of the model with a model of the SOFC.

19. Modeling of the hemodynamics of the cardiovascular system with a zero-D approach (Phyton) and with a 3D approach (OpenFoam code), considering blood as a NON-NEWTONIAN fluid and also modeling the LUMEN-BLOOD INTERACTION (fluid-structure interaction) where applicable.


He conducted his research activity in collaboration with: VM Motori, Magneti Marelli Bologna, Ferrari, PIAGGIO, FAR, PAIOLI, BUCHER HYDRAULICS.