caa a22 4500 606199012 CHVBK 20210128100936.0 cr unu---uuuuu 210128e20150201xx s 000 0 eng 10.1007/s00348-015-1895-9 doi (NATIONALLICENCE)springer-10.1007/s00348-015-1895-9 Experimental reconstruction of three-dimensional hydrodynamic loading in water entry problems through particle image velocimetry [Elektronische Daten] [Mohammad Jalalisendi, Adel Shams, Riccardo Panciroli, Maurizio Porfiri] Predicting the hydrodynamic loading during water impact is of fundamental importance for the design of offshore and aerospace structures. Here, we experimentally characterize the 3D hydrodynamic loading on a rigid wedge vertically impacting a quiescent water surface. Planar particle image velocimetry is used to measure the velocity field on several planes, along the width and the length of the impacting wedge. Such data are ultimately utilized to estimate the 3D velocity field in the whole fluid domain, where the pressure field is reconstructed from the solution of the incompressible Navier-Stokes equations. Experimental results confirm that the velocity field is nearly 2D at the mid-span of the wedge, while the axial velocity along the length of the wedge becomes significant in the proximity of the edges. The variation of the fluid flow along the length of the wedge regulates the hydrodynamic loading experienced during the impact. Specifically, the hydrodynamic loading is maximized at the mid-span of the wedge and considerably decreases toward the edges. The method proposed in this study can find application in several areas of experimental fluid mechanics, where the analysis of unsteady 3D fluid-structure interactions is of interest. Springer-Verlag Berlin Heidelberg, 2015 Jalalisendi Mohammad Department of Mechanical and Aerospace Engineering, New York University Polytechnic School of Engineering, Six MetroTech Center, 11201, Brooklyn, NY, USA aut Shams Adel Department of Mechanical and Aerospace Engineering, New York University Polytechnic School of Engineering, Six MetroTech Center, 11201, Brooklyn, NY, USA aut Panciroli Riccardo Università degli Studi Niccolò Cusano, Via Don Carlo Gnocchi 3, 00166, Rome, Italy aut Porfiri Maurizio Department of Mechanical and Aerospace Engineering, New York University Polytechnic School of Engineering, Six MetroTech Center, 11201, Brooklyn, NY, USA aut Experiments in Fluids Springer Berlin Heidelberg 56/2(2015-02-01), 1-17 0723-4864 56:2<1 2015 56 348 https://doi.org/10.1007/s00348-015-1895-9 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00348-015-1895-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jalalisendi Mohammad Department of Mechanical and Aerospace Engineering, New York University Polytechnic School of Engineering, Six MetroTech Center, 11201, Brooklyn, NY, USA aut NATIONALLICENCE 700 1- Shams Adel Department of Mechanical and Aerospace Engineering, New York University Polytechnic School of Engineering, Six MetroTech Center, 11201, Brooklyn, NY, USA aut NATIONALLICENCE 700 1- Panciroli Riccardo Università degli Studi Niccolò Cusano, Via Don Carlo Gnocchi 3, 00166, Rome, Italy aut NATIONALLICENCE 700 1- Porfiri Maurizio Department of Mechanical and Aerospace Engineering, New York University Polytechnic School of Engineering, Six MetroTech Center, 11201, Brooklyn, NY, USA aut NATIONALLICENCE 773 0- Experiments in Fluids Springer Berlin Heidelberg 56/2(2015-02-01), 1-17 0723-4864 56:2<1 2015 56 348