A critical assessment of PIV-based pressure reconstruction in water-entry problems

Simonluca Russo, Mohammad Jalalisendi, Giacomo Falcucci, Maurizio Porfiri

Research output: Contribution to conferencePaper

Abstract

Hull slamming constitutes an important class of impulsive loading for marine composites. In this work, we experimentally assess the effectiveness of particle image velocimetry (PIV) to resolve the flow physics and infer the pressure distribution in water entry problems. Toward this aim, PIV experiments are performed on a rigid wedge with a deadrise angle of 37° symmetrically impacting the water surface by free falling from a height of 50 cm. PIV measurements are systematically compared with data from an array of sensors, such as potentiometer, accelerometers, and pressure transducers. In the first part of our assessment, we compare the wedge entry depth and velocity obtained through PIV with the results obtained from the potentiometer and accelerometers. Next, we compare the reconstructed pressure and force from PIV with data from pressure transducers and accelerometers. Our results demonstrate the feasibility of PIV in the study of water entry problems, highlighting critical advantages of this non-invasive approach.

Original languageEnglish (US)
StatePublished - Jan 1 2017
Event21st International Conference on Composite Materials, ICCM 2017 - Xi'an, China
Duration: Aug 20 2017Aug 25 2017

Other

Other21st International Conference on Composite Materials, ICCM 2017
CountryChina
CityXi'an
Period8/20/178/25/17

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Keywords

  • Fluid-structure interaction
  • Hull slamming
  • Hydrodynamic loading
  • Particle image velocimetry
  • Pressure reconstruction

ASJC Scopus subject areas

  • Engineering(all)
  • Ceramics and Composites

Cite this

Russo, S., Jalalisendi, M., Falcucci, G., & Porfiri, M. (2017). A critical assessment of PIV-based pressure reconstruction in water-entry problems. Paper presented at 21st International Conference on Composite Materials, ICCM 2017, Xi'an, China.