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Communication Dans Un Congrès Année : 2017

Multimodal Sensing of Erosive Cavitation Phenomena

Résumé

In this paper, we present a novel approach for the sensing of erosive cavitation phenomena in underwater facilities. Cavitation phenomena are known for their destructive capacity of underwater structures and are caused by the pressure decreasing followed by an implosion when the cavitation bubblesfind an adverse pressure gradient. Conventional cavitation detection techniques are based on passive devices (pressure sensors or accelerometers) that just allows detection the cavitation but without assessing its erosive action. In order to go beyond these techniques that will remove this drawback, an alternative can be represented by the active techniques. Emissions of wide band signals in the flow during the apparition and development of cavitation embeds changes in the received signals. Signal processing methods, namely the Recurrence Quantification Analysis, are used to develop a robust metric that will estimate the effects of erosion.
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Dates et versions

hal-01592633 , version 1 (26-09-2017)

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  • HAL Id : hal-01592633 , version 1

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Irina Murgan, Angela Digulescu, Ion Candel, Cornel Ioana, Alexandru Șerbănescu. Multimodal Sensing of Erosive Cavitation Phenomena. OCEANS 2017 - OCEANS '17 MTS/IEEE. Our Harsh and Fragile Ocean, Sep 2017, Anchorage, United States. ⟨hal-01592633⟩
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