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Numerical simulation of cavitating flows under uncertainty


Rodio, M G; Abgrall, Rémi; Congedo, P M (2017). Numerical simulation of cavitating flows under uncertainty. Journal of Physics : Conference Series, 821:012009.

Abstract

Cavitation is characterized by vapor bubbles creation in the liquid phase as a consequence of a pressure drop. This phenomenon can be reproduced by means of several two-phase models. An equation of state is commonly used in order to define the thermophysical properties of the two fluids and to close the model. The aim of this work is to study how the uncertain parameters of the equation of state (EOS) can influence the prediction of the cavitation structures. These uncertainties are propagated through a two-phase numerical solver for evaluating the impact on the predictive character of the numerical solution. The variability of the mixture velocity and the mixture pressure are analyzed. © Published under licence by IOP Publishing Ltd.

Abstract

Cavitation is characterized by vapor bubbles creation in the liquid phase as a consequence of a pressure drop. This phenomenon can be reproduced by means of several two-phase models. An equation of state is commonly used in order to define the thermophysical properties of the two fluids and to close the model. The aim of this work is to study how the uncertain parameters of the equation of state (EOS) can influence the prediction of the cavitation structures. These uncertainties are propagated through a two-phase numerical solver for evaluating the impact on the predictive character of the numerical solution. The variability of the mixture velocity and the mixture pressure are analyzed. © Published under licence by IOP Publishing Ltd.

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Additional indexing

Item Type:Journal Article, not refereed, original work
Communities & Collections:07 Faculty of Science > Institute of Mathematics
Dewey Decimal Classification:510 Mathematics
Language:English
Date:7 April 2017
Deposited On:10 Oct 2017 13:03
Last Modified:10 Jan 2018 12:06
Publisher:IOP Publishing
ISSN:1742-6588
Additional Information:1st International Seminar on Non-Ideal Compressible-Fluid Dynamics for Propulsion and Power, NICFD 2016; Villa MonasteroVarenna; Italy; 20 October 2016 through 21 October 2016; Code 127150
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1088/1742-6596/821/1/012009

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