PAVESI GIORGIO

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Structure Department of Industrial Engineering
Telephone 0498276768
Qualification Professore associato confermato
Scientific sector ING-IND/08 - FLUID MACHINES
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Office hours
Tuesday from 16:30 to 18:00 Dipartimento Ingegneria Industriale - via Venezia 1 - V piano
(updated on 02/12/2013 19:09)

Proposals for thesis
Experimental Investigation of a Pump-Turbine at Off-Design Operating Conditions in Generating Mode
In the present study, a reduced scale model of a low specific speed radial pump-turbine will be investigated to identify the onset and development of flow instabilities. Wall pressure measurements in the stator will be performed with the help of miniature piezoresistive sensors to analyse low frequency component at runaway and the instability sources.

Hydrodynamics of Pump-Turbine at Off-Design Operating Condition in Generating Mode
Numerical flow investigations of a radial pump-turbine will be performed under off-design operating conditions, involving speed no load, runaway and “S-shape” turbine brake curve.

Hydrodynamics of Power Pumps at Off-Design Operating Conditions
In the present study, a low specific speed radial pump has to be investigated to identify the onset and development of flow instabilities.

Experimental Investigation of a Pump-Turbine at Off-Design Operating Conditions in Pump Mode
The focus will be put on the generating instability at off-design conditions due to the rotor stator interactions. Wall pressure measurements in the stator will be performed with the help of miniature piezoresistive sensors to analyse low frequency component at runaway and the instability sources.

Curriculum Vitae
Master of Science with honours in Mechanical Engineering in 1984 at the University of Padova discussing a thesis on the Slip Factor in the Turbomachines.
In 1986 he was awarded a PhD grant at the University of Padova and in 1989 he received the Ph.D. in Energetics discussing a thesis on small gas turbine for cogeneration plants.
From 1990 t 2001 he was Assistant Professor at the University of Padova. Lecturer in the undergraduate courses “Energy Conversion Systems and Machines“, “Design of Energy Conversion Machines” and “Internal Combustion Engines.
1994-1996: Assistant Professor in “Energy Conversion Systems and Machines“ University of Udine.
1997-1998: Assistant Professor in “Energy Conversion Systems and Machines“ University of Trieste
Since 2002 Associate Professor of Energy Conversion Systems and Machines at the Department of Mechanical Engineering, University of Padova

Scientific cooperation
Ecole Centrale de Lille (France)
Ingenieurwissenschaften Abteilung Maschinenbau Strömungsmaschinen – University of Duisburg-Essen (Germany)
South Bank University London (Great Britain)
Ecole Nationale Supérieure d'Arts et Métiers de Lille, Laboratoire de Mécanique de Lille (France)
Hydroart,
Worthington,
Woods Air Movement,
Quality and Pump,
Calpeda,
Caster Magnetic Drive Pumps,
Riello SpA
Tamanini srl
Zeco HydroPower srl
COMAS SpA
La Meccanica Srl

International editorial board (last 5 years)

International Journal of Rotating Machinery
Journal of Drainage and Irrigation Machinery Engineering
La Houille Blanche - Revue internationale de l'eau

International Cometees
Since 1999 Member of IEC (International Electrotechnical Commission) “Pump and Small Hydraulic Turbines”
Since 2010 Member of IEC (International Electrotechnical Commission) “Motori Primi Idraulici e Turbine a Vapore”
From 1999 to 2002 deletate at Working Group 27: Cavitation in Hydraulic Machines
From 2010 delegate at MT32 “IEC 60193 Hydraulic turbines, storage pumps and pump-turbines - Model acceptance tests

Research areas
Theoretical and experimental analyses of the flow field in turbomachinery;

Stator Rotor Interaction in Pumps and Turbines;

Design, simulation and optimization of Fluid Machinery;

Design and Optimization of Wind Turbines.

Publications
Recent publications (last 2/3 years):
2015
Guido Ardizzon, Giovanna Cavazzini, Giorgio Pavesi (2015) Adaptive acceleration coefficients for a new search diversification strategy in particle swarm optimization algorithms, Information Sciences, Volume 299, 1 April 2015, Pages 337–378, doi:10.1016/j.ins.2014.12.024
Giovanna Cavazzini, Giorgio Pavesi1, Alberto Santolin, Guido Ardizzon and Renzo Lorenzi (2015) Using splitter blades to improve suction performance of centrifugal impeller pumps Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, DOI: 10.1177/09

2014
A. Rossetti, G. Pavesi, G. Cavazzini, A. Santolin, G. Ardizzon (2014). Influence of the bucket geometry on the Pelton performance PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS. PART A, JOURNAL OF POWER AND ENERGY (ISSN:0957-6509), 33- 45, 228; doi 10.1177/0957650913506589
Rossetti A., Rossetti A., Pavesi G., Ardizzon G., Santolin A. (2014). Numerical Analyses of Cavitating Flow in a Pelton Turbine JOURNAL OF FLUIDS ENGINEERING (ISSN:0098-2202), 8; doi: 10.1115/1.4027139
G. Pavesi, G. Cavazzini, J. Yang, G. Ardizzon (2014) Flow Phenomena related to the Unstable Energy-Discharge Characteristic of a Pump-Turbine in Pump Mode. Proceedings of the 15th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery 1- 8 24-28 February 2014 Honolulu, Hawaii, USA.
A.-C. Bayeul-Lainé, P. Dupont, L. Miccoli, G. Cavazzini, A. Dazin, G. Pavesi, G. Bois (2014) Fluid leakage effect on analysis of a vaned diffuser of SHF. Proceedings of the 15th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery 24-28 February 2014 Honolulu, Hawaii, USA.
G. Ardizzon,G. Cavazzini,G. Pavesi (2014). A new generation of small hydro and pumped-hydro power plants: Advances and future challenges RENEWABLE & SUSTAINABLE ENERGY REVIEWS (ISSN:1364-0321), 746- 761, 31; doi: 10.1016/j.rser.2013.12.043

2013
Rossetti A., Pavesi G. (2013). Comparison of different numerical approaches to the study of the H-Darrieus turbines start-up RENEWABLE ENERGY (ISSN:0960-1481), 7- 19, 50; doi 10.1016/j.renene.2012.06.025.
J Yang, G Pavesi, G Cavazzini, S Yuan (2013) Numerical characterization of pressure instabilities in a vaned centrifugal pump under partload condition. IOP conf. Series: Materials Science and Engineering Tsinghua University Press 1- 7 52 19-22 Settembre 2013 Beijing, China, doi: 10.1088/1757-899x/52/2/022044
Pavesi G., Cavazzini G., Jun Y., Ardizzon G. (2013) Influence of the flow phenomena on pump-turbine stability at part-load in pump mode. IAHR-WG2013 EPFL Lausanne 1- 1 8 - 11 September 2013 Lausanne, Switzerland.
Santolin A., Pavesi G., Cavazzini G., Ardizzon G. (2013) Variable-speed Pelton turbine for an efficient exploitation of the reserved flow: an Italian case study. Promoting the Versatile Role of Hydro Aqua-Media International Wallington 1- 13 7-9 Ottobre 2013 Innsbruck, Austria.
G. Cavazzini, P. Dupont, A. Dazin, G. Pavesi, A. C. Bayeul, G. Bois (2013). Unsteady Velocity PIV Measurements and 3D Numerical Calculation Comparisons Inside the Impeller of a Radial Pump Model. 10th European Conference on Turbomachinery - Fluid Dynamics and Thermodynamics. Hameen Kirjapaino Oy, Tampere: 1- 10.
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Lecturer's Publications (PDF): 1AA5D2C88CB7E495623CE66113D5C98D.pdf

List of taught course units in A.Y. 2017/18
Degree course code (?) Degree course track Course unit code Course unit name Credits Year Period Lang. Teacher in charge
IN0515 COMMON IN10105484 ENERGY CONVERSION SYSTEMS AND MACHINES (Ult. numero di matricola pari)
Details for students enrolled in A.Y. 2015/16
Current A.Y. 2017/18
9 3rd Year First
semester
ITA GIORGIO PAVESI
IN0528 COMMON INP5071887 WIND AND HYDRAULIC TURBINES
Details for students enrolled in A.Y. 2016/17
Current A.Y. 2017/18
9 2nd Year First
semester
ENG GIORGIO PAVESI