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http://dx.doi.org/10.5762/KAIS.2011.12.8.3374

Numerical Experimentations on Flow Impact Phenomena for 2-D Wedge Entry Problem  

Yum, Duek-Joon (Department of Naval Architecture, Kunsan National University)
Du, Hun (School of Mechanical & Automative Engineering, Kunsan National University)
Kim, Young-Chul (School of Mechanical & Automative Engineering, Kunsan National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.12, no.8, 2011 , pp. 3374-3383 More about this Journal
Abstract
In this study, numerical analyses for slamming impact phenomena have been carried out using a 2-dimensional wedge shaped structure having finite deadrise angles. Fluid is assumed incompressible and entry speed of the structure is kept constant. Geo-reconstruct(or PLIC-VOF) scheme is used for the tracking of the deforming free surface. Numerical analyses are carried out for the deadrise angles of $10^{\circ}$, $20^{\circ}$ and $30^{\circ}$. For each deadrise angle, variations are made for the grid size on the wedge bottom and for the entry speed. The magnitude and the location of impact pressure and the total drag force, which is the summation of pressure distributed at the bottom of the structure, are analyzed. Results of the analyses are compared with the results of the Dobrovol'skaya similarity solutions, the asymptotic solution based on the Wagner method and the solution of Boundary Element Method(BEM).
Keywords
2-D Wedge; Slamming; Numerical Analysis; Finite Volume Method; Impact Pressure;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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