Development of a fully Lagrangian MPS-based coupled method for simulation of fluid–structure interaction problems

다국어 초록 (Multilingual Abstract)

<P><B>Abstract</B></P> <P>A fully Lagrangian particle-based method is developed for simulating the FSI (Fluid–Structure Interaction) problems corresponding to incompressible fluid flows and elastic structures. First, the developed elastic structure model is verified by static and dynamic tests corresponding to a simple cantilever beam. The simulation results are compared with analytical and other researchers׳ numerical solutions. Then, the structure model is carefully coupled with a fluid model comprising of the so-called PNU-MPS (Pusan-National-University-modified Moving Particle Simulation) method and several recently developed enhanced schemes. The coupled fluid–structure method is applied to a dam break with an elastic gate and a violent sloshing flow with a hanging rubber baffle. The results of simulations are compared with those of the experiments by Antoci et al. (2007) and Idelsohn et al. (2008).</P> <P><B>Highlights</B></P> <P> <UL> <LI> A fully Lagrangian particle-based method is developed for FSI simulations. </LI> <LI> A mathematically-physically consistent coupling algorithm is proposed. </LI> <LI> A set of enhanced schemes and appropriate modifications are applied. </LI> <LI> Verifications are performed to show the robustness of the developed method. </LI> </UL> </P>