- Docente: Beatrice Pulvirenti
- Credits: 6
- SSD: ING-IND/10
- Language: English
- Moduli: Beatrice Pulvirenti (Modulo 1) Michele Celli (Modulo 2)
- Teaching Mode: Traditional lectures (Modulo 1) Traditional lectures (Modulo 2)
- Campus: Bologna
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Corso:
Second cycle degree programme (LM) in
Energy Engineering (cod. 5978)
Also valid for Second cycle degree programme (LM) in Energy Engineering (cod. 5978)
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from Sep 20, 2024 to Dec 20, 2024
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from Sep 17, 2024 to Dec 03, 2024
Learning outcomes
The course provides knowledge on the heat and mass transfer in porous media and microchannels. The student learns the methodologies for the thermal and dynamical analysis of fluid saturated porous media, and for the study of single and multiphase heat transfer in microfluidics.
Course contents
Module I.
Single-phase gas flow in microchannels
Single-phase liquid flow in minichannels and microchannels
Single phase electrokinetic flow in microchannels
Flow boiling in minichannels and microchannels
Condensation in minichannels and microchannels
Biomedical applications of microchannel flows.
Module II.
Heat and mass transfer in porous media. Description of the flow through a solid matrix - Darcy law - Permeability of a porous medium - Darcy-Forchheimer extension - Brinkman extension - Local mass and energy balance equations - Two-temperature model (Local Thermal Nonequilibrium, LTNE) - Internal and external flows.
Elementary introduction to stability analysis: linear/nonlinear. Convective instabilities and convection: description of the governing equations and effects triggering instability. Stability analysis: Horton-Rogers-Lapwood problem and Prats problem.
Readings/Bibliography
Introduction to Microfluidics: Second Edition. Patrick Tabeling. Oxford 2023.
Teaching methods
Classroom and laboratory lectures with guided solution of exercises.
Assessment methods
The exam consists in an oral test. The oral test is oriented to the evaluation of the achievement of an appropriate knowledge on the basic topics of the course, both under the theoretical perspective and for the capability to solve numerically elementary problems of heat and fluid flow.
The student will prepare a written report on one of the topics covered in the course, freely chosen, addressing both the theoretical aspects and the numerical simulation. The oral test will consist in the presentation and discussion of this written report.
The final mark, less or equal than 30 (positive outcome is greater or equal than 18), expresses the overall evaluation on the theoretical knowledge and on the practical ability with respect to problem solving.
Teaching tools
Blackboard lessons, pc presentations, examples of numerical solutions.
The software Mathematica is employed as a virtual blackboard for the manipulation of equations and for the determination of analytical and numerical solutions.
This course is part of the project on teaching innovation for the University.
Office hours
See the website of Beatrice Pulvirenti
See the website of Michele Celli