%0 Journal Article
%T Simulation of Water-Entry and Water-Exit Problems Using a Moving Mesh Algorithm
%A Roozbeh Panahi
%J Journal of Theoretical and Applied Mechanics
%D 2012
%I Versita
%R 10.2478/v10254-012-0010-3
%X Simulation of the water-entry and water-exit particularly, at the interface of two phases i.e. water and air due to the effect of flow-induced loads, gravity force and trapped air cushion presence is very complicated. This paper attempts to introduce a finite volume-based moving mesh algorithm in order to simulate such problems in a viscous incompressible two-phase medium. The algorithm employs a fractional step method to deal with the coupling between pressure and velocity fields. Interface is also captured by solving a volume fraction transport equation. A boundary-fitted body-attached mesh of quadrilateral Control Volumes (CVs) is implemented to record hydrodynamic time histories of loads, motions and interfacial flow changes around the structure. Forced water-exit of a cylinder is simulated based on the introduced algorithm, together with free symmetric and asymmetric water-entry of wedges. Results show that the presented algorithm is favorably capable of assessing such complexities when comparing to experimental data.
%K Interfacial flow
%K finite volume
%K body-attached mesh
%K slamming
%U http://versita.metapress.com/content/g026107837226465/?p=08d88f8e88d74df38778369e7a1624fc&pi=4