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Hydrodynamic cavitation: from theory towards a new experimental approach

100%
Lucia U., Gervino G.
Open Physics
|
2009
|
vol. 7
|
issue 3
638-644
EN
Hydrodynamic cavitation is analysed by a global thermodynamics principle following an approach based on the maximum irreversible entropy variation that has already given promising results for open systems and has been successfully applied in specific engineering problems. In this paper we present a new phenomenological method to evaluate the conditions inducing cavitation. We think this method could be useful in the design of turbo-machineries and related technologies: it represents both an original physical approach to cavitation and an economical saving in planning because the theoretical analysis could allow engineers to reduce the experimental tests and the costs of the design process.
2
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Nonextensive statistical effects in the quark-gluon plasma formation at relativistic heavy-ion collisions energies

81%
Gervino G., Lavagno A., Pigato D.
Open Physics
|
2012
|
vol. 10
|
issue 3
594-601
EN
We investigate the relativistic equation of state of hadronic matter and quark-gluon plasma at finite temperature and baryon density in the framework of the non-extensive statistical mechanics, characterized by power-law quantum distributions. We impose the Gibbs conditions on the global conservation of baryon number, electric charge and strangeness number. For the hadronic phase, we study an extended relativistic mean-field theoretical model with the inclusion of strange particles (hyperons and mesons). For the quark sector, we employ an extended MIT-Bag model. In this context we focus on the relevance of non-extensive effects in the presence of strange matter.
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