Martino Marini

Prof. Martino Marini

DADU, University of Sassari
orcid

Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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27 January 2021 in Applied Sciences
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Journal Article
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SCStefano Cademartori
Stefano Cademartori
Carlo CraveroCarlo Cravero
Carlo Cravero
Martino MariniMartino Marini
Martino Marini
Davide MarsanoDavide Marsano
Davide Marsano
A CFD model to simulate the cooling technique trough slot jet impingement has been developed. Such a technique has been tested on an existing vertical galvanizing industrial line, which initially envisaged a round jet configuration, the subject of a previous work. Two different slot jet configurations have been simulated and compared to the pre-existing one, in order to provide design information for a possible new jet cooler after exploring different solutions. The numerical model has been appropriately calibrated and validated by comparing it with experimental measurements from a literature case. At first, a single slot jet configuration was simulated through a 2D model, then multi slot configurations were calculated using 3D models. Different turbulence models were compared to select the best candidate for the CFD approach. Finally, several configurations with different slots numbers and jet-wall distances were considered. It was possible to understand the physical mechanisms underlying this cooling technique and to be able to select the most promising configuration for the reference industrial cooling process.

18 April 2019 in Applied Sciences
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Journal Article
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MBMatteo Bardelli
Matteo Bardelli
Carlo CraveroCarlo Cravero
Carlo Cravero
Martino MariniMartino Marini
Martino Marini
Davide MarsanoDavide Marsano
Davide Marsano
OMOmar Milingi
Omar Milingi
The work presents the results of a CFD campaign to investigate the impeller–diffuser interaction in a centrifugal compressor, taking advantage of experimental data from the open literature. Previous studies on the same turbomachine focused on an experimental investigation to understand the flow interaction between the impeller and the vaned diffuser. These experimental data have been used to validate the simulation approach and discuss its results. Several CFD models with increasing complexity have been developed to take into account different aspects. The steady analysis has been performed to highlight the potentials and limitations of such models and to carry out a first study of the flow. In order to analyze the impeller–diffuser interaction, a further model for the unsteady analysis has been set up. Two different operating points have been investigated: one on the surge limit and another in a more stable working zone. A good agreement with the experimental reference data has been obtained with the unsteady analysis and some insights in the complex flow field are deduced.

18 July 2017 in Journal of Energy Resources Technology
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Martino MariniMartino Marini
Martino Marini
RBRoberto Baccoli
Roberto Baccoli
Costantino Carlo MastinoCostantino Carlo Mastino
Costantino Carlo Mastino
Antonino Di BellaAntonino Di Bella
Antonino Di Bella
CBCarlo Bernardini
Carlo Bernardini
Massimiliano MasulloMassimiliano Masullo
Massimiliano Masullo

20 September 2017 in International Journal of Heat and Technology
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Journal Article
Open access
SCSanto Cogliandro
Santo Cogliandro
CCCarlo Cravero
Carlo Cravero
Martino MariniMartino Marini
Martino Marini
ASAlessandro Spoladore
Alessandro Spoladore


30 July 2020 in Applied Sciences
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Journal Article
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GCGiovanni Carozzo
Giovanni Carozzo
Carlo CraveroCarlo Cravero
Carlo Cravero
Martino MariniMartino Marini
Martino Marini
MMMatteo Mazza
Matteo Mazza
The work focuses on the development of a thermo-fluid dynamic simulation model of a section of close cooling, called a jet cooler, inserted in the galvanizing line of metal band production. Two models of increasing accuracy have been tested and calibrated by experimental data. Special attention to turbulence modeling and boundary conditions has been given. A literature survey was focused on the jet impingement process (the reference heat transfer mechanism for the system component) and on available correlations to predict the heat exchange coefficient. The numerical simulation of jet impingement has been applied to a module of an actual industrial cooler for steel band production. The operation of the jet cooler was simulated in real operating conditions to get a detailed insight into the jet impingement mechanism in order to optimize the heat transfer and reduce, as far as possible, the cooling fluid mass flow rate. The comparison of heat transfer correlations, used in industrial preliminary design, with detailed CFD results is discussed.