FLUID DYNAMICS SIMULATION

Second cycle degree in CHEMICAL AND PROCESS ENGINEERING

Campus: PADOVA

Language: English

Teaching period: Second Semester

Lecturer: FABRIZIO BEZZO

Number of ECTS credits allocated: 6


Syllabus
Examination methods: Written exam (85% of final marks) and homeworks (15%).
The written exam comprises a numerical exercise and few open question concerning theoretical topics. The objective is to evaluate:
a. the capability to design and assess mixing equipment
b. the knowledge on models and their applicability for representing turbulent phenomena, multiphase flows, reactive flows
c. the knowledge of numerical methods used in computational fluid dynamics
Homeworks aim at assessing the capability of utilising a commercial CFD software in a critical way.
Course unit contents: INTRODUCTION TO COMPUTATIONAL FLUID DYNAMICS: Navier-Stokes equations. Statistical description of turbulent flows. Models for turbulent flow description in computational fluid dynamics: two-equation models. Some mention to large eddy simulation (LES).
SOLVING FLUID DYNAMICS MODELS: The finite volume method: steady and transient flows. Availability and selection of numerical methods in commercial software. A brief introduction to meshing criteria.
MULTIPHASE FLOWS: Phase coupling analysis (using dimensionless numbers). Eulerian-Lagrangian and Eulerian-Eulerian modeling approaches; some mention to population balance modeling.
REACTIVE FLOWS: Multiscale approach to mixing in turbulent systems. Interaction between mixing and reactive phenomena. Reactive flow modeling in computational fluid dynamics: reaction rate models, equilibrium models, flamelet models.
USAGE OF COMMERCIAL SOFTWARE FOR EQUIPMENT SIMULATION AND DESIGN: hands-on tutorials for analysing homogeneous, multiphase, and reactive systems.
MIXING EQUIPMENT DESIGN: Equipment details in mixing tanks. Mixing in homogeneous systems: criteria for equipment design and scale-up. Multiphase systems: liquid-solid and liquid-gas mixing. Design criteria for interphase mass transfer. Equipment design in reactive systems. Mixing in pipelines: criteria for equipment selection and design.