TY - CONF
T1 - A critical assessment of PIV-based pressure reconstruction in water-entry problems
AU - Russo, Simonluca
AU - Jalalisendi, Mohammad
AU - Falcucci, Giacomo
AU - Porfiri, Maurizio
N1 - Funding Information:
This work has been supported by the Office of Naval Research Grant No. N00014-10-1-0988 with Dr. Y. D. S. Rajapakse as the program manager and by the Italian Ministry Program PRIN, grant n. 20154EHYW9 "Combined numerical and experimental methodology for fluid structure interaction in free surface flows under impulsive loading”, with Prof. Chiara Biscarini as the Principal Investigator.
PY - 2017
Y1 - 2017
N2 - 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.
AB - 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.
KW - Fluid-structure interaction
KW - Hull slamming
KW - Hydrodynamic loading
KW - Particle image velocimetry
KW - Pressure reconstruction
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M3 - Paper
AN - SCOPUS:85053122388
T2 - 21st International Conference on Composite Materials, ICCM 2017
Y2 - 20 August 2017 through 25 August 2017
ER -