Unit

Course
Mechanical engineering
Study-unit Code
GP004970
Curriculum
Energia
CFU
9
Course Regulation
Coorte 2022
Offered
2022/23
Type of study-unit
Obbligatorio (Required)
Type of learning activities
Attività formativa integrata

Code A002357
CFU 4
Teacher Francesco Mariani
Teachers
  • Francesco Mariani
Hours
  • 32 ore - Francesco Mariani
Learning activities Affine/integrativa
Area Attività formative affini o integrative
Academic discipline ING-IND/09
Type of study-unit Obbligatorio (Required)
Language of instruction ENGLISH
Contents Statics and fluid dynamics of ideal and real incompressible fluids: fundamental equations. Distributed and concentrated head losses; efflux coefficients.
Applications with CFD-3D codes.
Reference texts ¿ Citrini, Noseda - IDRAULICA - Casa Editrice Ambrosiana;

¿ Mossa, Petrillo - IDRAULICA - Casa Editrice Ambrosiana;

¿ Quartapelle (2 Vol.); Fluidodinamica Comprimibile e Incomprimibile – Casa Editrice Ambrosiana.
Educational objectives Acquire the ability to interpret and manipulate the fundamental equations of fluid dynamics: conservation of mass, energy and momentum; Euler and Navier-Stokes equations.
Knowing how to model a physical system by executing its setup in a CFD / 3D simulation environment.
Prerequisites Bachelor degree
Teaching methods Lectures and project activities using CFD-3D codes: development of external and internal thermo-fluid dynamics case studies.
Other information
Learning verification modality 1- written test: 2 exercises;
2- oral exam: presentation of the project developed during the course with CFD -3D tools.
Extended program Fluid motion; applications;
- Fluid statics; applications;
- Kinematic of fluids; applications;
- Dynamic of fluids: basic equations;
- Bernoulli’s theorem; applications;
- Real fluids: viscosity and Navier-Stokes equations;
- Pressurized flows; applications;
- Long pipelines analysis: applications;
- Notes on unsteady pressurized streams.
Introduction to the simulation of thermofluid dynamic systems employing computational fluid- dynamics codes 3D.

Code A002358
CFU 5
Teacher Michele Battistoni
Teachers
  • Michele Battistoni
Hours
  • 40 ore - Michele Battistoni
Learning activities Caratterizzante
Area Ingegneria meccanica
Academic discipline ING-IND/08
Type of study-unit Obbligatorio (Required)
Language of instruction Italian
Contents Fundamentals of Computational Fluid Dynamics (CFD).
Turbulent flows.
Chemically reactive flows.
Multiphase flows.
Applications to fluid machines, internal flows and external flows.
Introduction to High Performance Computing (HPC).
Reference texts Andersson B., et al.: Computational Fluid Dynamics for Engineers, Cambridge Press 2012
Educational objectives Ability to sketch and setup a problem for Computational Fluid Dynamics (CFD) simulation. Selection of models. Analysis of flows in internal combustion engines, fuel sprays, combustion devices, and external aerodynamics. Knowledge of High Performance Computing platforms and usage.
Prerequisites previous courses: macchine a fluido.
Teaching methods - lectures
- exercises with computer simulations
Other information
Learning verification modality project, tutorials and oral exam
Extended program 1. Fundamentals of fluid-dynamics. Flow regimes: compressible and incompressible, laminar and turbulent, single-phase and multi-phase. Modeling: conservation equations in various forms, equation of state, transport properties, viscosity, mass diffusivity, thermal diffusivity.
2. Introduction to computational fluid-dynamics (CFD). Numerical methods. Spatial and temporal discretization methods, accuracy, stability. Equation coupling, pressure-based and density-based solution algorithms. Segregated and coupled solvers.
3. Turbulence fundamentals: energy cascade and turbulence length-scales. Modeling approaches: Direct Numerical Simulation (DNS), Large Eddy Simulations) LES, Reynolds Averaged Navier-Stokes (RANS). Boundary layer treatment.
4. Turbulent mixing and reactive flows. Modeling of turbulent mixing and chemically reacting flows. Premixed vs. non-premixed combustion. Turbulence-chemistry interaction.
5. Multiphase flows. Lagrangian and Eulerian description.
Two-fluid and single-fluid models. Interaction among phases.
6. CFD applications to general turbulent flows, internal combustion engines, turbo-machinery, external flows. Design problems and analyses.
7. Introduction to High Performance Computing (HPC).
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