Lattice Boltzmann modeling of water entry problems

A. Zarghami, G. Falcucci, E. Jannelli, S. Succi, M. Porfiri and S. Ubertini ()
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A. Zarghami: H2CU, "La Sapienza" University of Rome, Italy;
G. Falcucci: Department of Engineering, "Parthenope" University of Naples, Centro Direzionale, Isola C4, 80149 Naples, Italy
E. Jannelli: Department of Engineering, "Parthenope" University of Naples, Centro Direzionale, Isola C4, 80149 Naples, Italy
S. Succi: Istituto per le Applicazioni del Calcolo, CNR, Via dei Taurini 19, 00185 Rome, Italy
M. Porfiri: Department of Mechanical and Aerospace Engineering, New York University Polytechnic School of Engineering, Six MetroTech Center, Brooklyn NY 11201, USA
S. Ubertini: DEIM, Industrial Engineering School, University of Tuscia, Viterbo, Italy

International Journal of Modern Physics C (IJMPC), 2014, vol. 25, issue 12, 1-11

Abstract: This paper deals with the simulation of water entry problems using the lattice Boltzmann method (LBM). The dynamics of the free surface is treated through the mass and momentum fluxes across the interface cells. A bounce-back boundary condition is utilized to model the contact between the fluid and the moving object. The method is implemented for the analysis of a two-dimensional flow physics produced by a symmetric wedge entering vertically a weakly-compressible fluid at a constant velocity. The method is used to predict the wetted length, the height of water pile-up, the pressure distribution and the overall force on the wedge. The accuracy of the numerical results is demonstrated through comparisons with data reported in the literature.

Keywords: Fluid-structure interaction; hull slamming; lattice Boltzmann method (search for similar items in EconPapers)
Date: 2014
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DOI: 10.1142/S0129183114410125

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