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http://dx.doi.org/10.6112/kscfe.2014.19.1.015

NUMERICAL DIFFUSION DECREASE OF FREE-SURFACE FLOW ANALYSIS USING SOURCE TERM IN VOLUME FRACTION TRANSPORT EQUATION  

Park, Sunho (Dept. of Ocean Engineering, Korea Maritime and Ocean University)
Rhee, Shin Hyung (Dept. of Naval Architecture and Ocean Engineering, Seoul National University)
Publication Information
Journal of computational fluids engineering / v.19, no.1, 2014 , pp. 15-20 More about this Journal
Abstract
Accurate simulation of free-surface wave flows around a ship is very important for better hull-form design. In this paper, a computational fluid dynamics (CFD) code, termed SNUFOAM, which is based on the open source libraries, OpenFOAM, was developed to predict the wave patterns around a ship. Additional anti-diffusion source term for minimizing a numerical diffusion, which was caused by convection differencing scheme, was considered in the volume-fraction transport equation. The influence of the anti-diffusion source term was tested by applying it to free-surface wave flow around the Wigley model ship. In results, the band width of the volume fraction contours between 0.1 to 0.9 at the hull surface was narrowed by considering the anti-diffusion term.
Keywords
Free-surface Flow; Anti-diffusion Source Term; Computational Fluid Dynamics;
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Times Cited By KSCI : 1  (Citation Analysis)
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