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http://dx.doi.org/10.6112/kscfe.2016.21.3.055

A STUDY ON WATER ENTRY OF TWO-DIMENSIONAL CROSS-SECTIONAL SHAPE USING SNUFOAM  

Jang, D.J. (Dept. of Naval Architecture & Ocean Engineering, Seoul National Univ.)
Choi, Y.M. (Dept. of Naval Architecture & Ocean Engineering, Seoul National Univ.)
Choi, H.K. (Dept. of Naval Architecture & Ocean Engineering, Seoul National Univ.)
Rhee, S.H. (Research Institute Of Marine Systems Engineering, Seoul National Univ.)
Publication Information
Journal of computational fluids engineering / v.21, no.3, 2016 , pp. 55-63 More about this Journal
Abstract
Nowadays, large container ships are continually developed and that's why the bow and stern structural stability problems by slamming become a significant more and more. However, due to the complexity of slamming, it is difficult to consider those problems at the design stage. For this reason, we attempt numerical analysis through SNUFOAM by generating the bow and stern two-dimensional cross-sectional grid in WILS JIP experiment at KRISO. Unlike the conventional method for the computation time saving, by setting the inlet flow conditions referred to the model test, we analyzed the slamming without applying the grid deformation method. As a result, when the stern model, as in the previous studies, it was possible to obtain quantitatively the fluid impulse is close to the experimental results. When the bow model, we can found the change by the position of force sensors which are derived for the bulbous bow and obtained fluid impulse and flow shape at slamming similar to the model test.
Keywords
CFD; Water Entry; Finite Volume Method; Slamming; Multiphase flow; Stern model; Bow model;
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