Comparison of ISPH and WCSPH methods to solve fluid-structure interaction problems

作者：Sabahi H; Nikseresht A H^*

来源：Scientia Iranica, 2016, 23(6): 2595-2605.

DOI：10.24200/sci.2016.3969

• Incompressible Smoothed Particle Hydrodynmics (ISPH)
• Hypo-elastic gate
• Fluid-solid interaction

In this paper, the in-house code based on the smoothed particle hydrodynamics is proposed to simulate a Fluid-Solid interaction (FSI) problem. This method is a, Lagrangian, mesh-free method, and it, has a high ability to capture the free surface in two flows and also the interface in FS.I. problems. To compare Weakly Compressible SPH (WCSPH) and Incompressible SPH (ISPH) schemes, fluid flow under a hypo-elastic gate is simulated in solid and fluid domains with both methods. At first, fluid domain is simulated with ISPH method and solid domain is solved with WCSPIT, scheme. Another simulation is done with both fluid and solid parts solved by WCSPH method. The results of both methods are in good agreement, with each other and also with, other researcher's results. So, it is concluded that it, is easier to model the fluid flow with ISPH scheme and the solid part, with WCSPH in coupling fluid-solid interaction problems with good accuracy.

• 出版日期2016