This paper presents an extension of the Eulerian-Lagrangian Marker and Micro Cell (ELMMC) method, developed to numerically simulate the interaction between clear fluid flow and composite obstacles. The method can simulate both transient and pseudo-steady state problems that involve wave breaking, impact between fluid fronts, and impact between free surfaces and solid or porous boundaries. The newest capability added to the ELMMC method can simulate interaction between fluid fronts and unrestrained solid/porous obstacles. The extension of the ELMMC method is presented here in detail, including the estimation of the hydrodynamic forces induced by the flow on the solid/porous obstacles, the calculation of the final velocity fields, and the computation of the velocity of the solid/porous obstacles. The capabilities of the new method are demonstrated by simulating two representative problems, namely, a solid/porous sphere falling in a reservoir and a single large wave impacting an unrestrained solid/porous structure.
Interaction of Free Surface Flows With Unrestrained Solid-Porous Bodies
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Bidoae, R, Ciobotaru, RM, & Raad, PE. "Interaction of Free Surface Flows With Unrestrained Solid-Porous Bodies." Proceedings of the ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference. Volume 2: Symposia, Parts A, B, and C. Honolulu, Hawaii, USA. July 6–10, 2003. pp. 431-436. ASME. https://doi.org/10.1115/FEDSM2003-45156
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