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  1. 2 Open Physics

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  1. 2 2009

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  1. 1 Abe S.

  2. 1 Gervino G.

  3. 1 Lucia U.

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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.
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Conditional approach to thermo-superstatistics

84%
Abe S.
Open Physics
|
2009
|
vol. 7
|
issue 3
401-404
EN
A conditional approach is developed for establishing a generalized thermodynamic-like formalism for superstatistical systems. In this framework, the existence of two largely-separated time scales is explicitly taken into account. A generalization of Einstein’s relation for fluctuations is derived based on the restricted conditional maximum-entropy method.
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