Risorse bibliografiche
Risorsa bibliografica obbligatoria
Risorsa bibliografica facoltativa
Scheda Riassuntiva
Anno Accademico 2021/2022
Tipo incarico Dottorato
Cfu 5.00 Tipo insegnamento Monodisciplinare
Docenti: Titolare (Co-titolari) Messa Gianandrea Vittorio (Malavasi Stefano)

Corso di Dottorato Da (compreso) A (escluso) Insegnamento

Programma dettagliato e risultati di apprendimento attesi

The objective of this PhD Course is to provide an application-oriented yet theoretically rigorous overview of particle-laden flows, i.e., two-phase flows of solid particles within a carrier fluid (liquid or gas). These flows are encountered in many engineering fields, including but not limited to the mining industry, the oil & gas industry, and the hydraulic engineering. Students will learn how particle-laden flows can be characterized from a physical and engineering point of view, and they will be able to decide the most appropriate approach for handling these flows at the design level, including different techniques for the numerical simulation as well as the physical testing in laboratory setups. After discussing these aspects in a general framework, special attention will be paid to two phenomena of considerable industrial impact, namely, the liquid-solid transport in pipelines and the damage produced by the travelling solids on pipeline components and hydraulic equipment.


The course will be divided in two parts.


The first part will be given partly in the form of a MOOC, developed by the teachers in the context of a collaborative research project and available on the POLIMI-POK platform, and partly in the form of frontal lessons. The MOOC consists of 19 video-lessons organized into four weeks, dedicated to the following topics: fundamentals of particle-laden flows, simulations of particle-laden flows, transport of solids in pipeline systems, and solid particle erosion. For each of the first week of the MOOC: the teachers will introduce the topics of the video-lessons through a frontal lesson; the students will attend the video lessons and complement them with their own individual study; class activities including further deepening of the topics of the video lessons, document analysis, debate, project-based learning will be managed by the teachers.


The second part will be dedicated to laboratories prepared by the teachers. Particularly, in two laboratories the students will simulate the turbulent slurry flow in a horizontal pipe and the erosion produced by a slurry jet. The will start from numerical setups and mathematical models already developed by the teachers, and execute the simulations critically analyzing the results by answering specific questions. The last Laboratory will consist of a visit at the Hydraulic Laboratory of Politecnico di Milano, where two apparatus for slurry erosion testing are present. The students will be provided an overview of the functioning of the two apparatus and the experimental methodology and, depending on the availability of the equipment, might also try to execute a wet direct impact test under the guidance of the teachers.

Note Sulla Modalità di valutazione

Learning assessment criteria: 1) on-time delivery of the run-time quizzes, which must be submitted before the next lecture. Note: only the on-time delivery will be considered, not the number of correct answers; 2) Oral exam on the topics of one video-lesson of the MOOC, chosen by the student in agreement with the teachers, and further developed by the student starting from literature material provided by the teacher.

Intervallo di svolgimento dell'attività didattica
Data inizio
Data termine

Calendario testuale dell'attività didattica

The lessons will be held in the period May-June 2022, and they will be roughly arranged as follows.


Presentation of the course (1 hour)

Joint discussion of week 1 of the MOOC: Fundamentals of Particle-Laden flows (2 hours)

Joint discussion of week 2 of the MOOC: Simulation of Particle-Laden flows (2 hours)

Joint discussion of week 3 of the MOOC: Transport of Solids in Pipeline Systems (2 hours)

Joint discussion of week 4 of the MOOC: Solid Particle Erosion (2 hours)

Computer Laboratory on Particle Settling (3 hours)

Computer Laboratory on Slurry Pipe Transport (4 hours)

Visit to the Hydraulics Laboratory (4 hours)


Risorsa bibliografica facoltativaLoth E, Particles, drops and bubbles: fluid dynamics and numerical methods, Editore: Draft for Cambridge University Press, Anno edizione: 2020

Available online on academica.edu

Risorsa bibliografica facoltativaMessa GV, Yang Q, Adedeji OE, Chára Z, Duarte CAR, Matouek V, Rasteiro MG, Sanders RS, Silva RC, de Souza FJ, Computational Fluid Dynamics Modelling of Liquid-Solid Slurry Flows in Pipelines: State-of-the-Art and Future Perspectives / Processes, Editore: MDPI, Anno edizione: 2021, Fascicolo: 9(9), 1566 https://www.mdpi.com/2227-9717/9/9/1566
Risorsa bibliografica facoltativaWilson KC, Addie GR, Sellgren A, Slurry transport using centrifugal pumps, 3rd ed., Editore: Springer, Anno edizione: 2006
Risorsa bibliografica facoltativaParsi M, Najmi K, Najafifard F, Hassani S, McLaury BS, Shirazi SA, A comprehensive review of solid particle erosion modelling for oil and gas wells and pipelines applications / Journal of Natural Gas Science and Engineering, Editore: Elsevier, Anno edizione: 2014, Fascicolo: 21 https://www.sciencedirect.com/science/article/pii/S187551001400300X

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Informazioni in lingua inglese a supporto dell'internazionalizzazione
Insegnamento erogato in lingua Inglese
Disponibilità di libri di testo/bibliografia in lingua inglese
Possibilità di sostenere l'esame in lingua inglese
Disponibilità di supporto didattico in lingua inglese

Note Docente
schedaincarico v. 1.9.6 / 1.9.6
Area Servizi ICT