1. Investigations on sloshing mitigation using elastic baffles by coupling smoothed finite element method and decoupled finite particle method.
- Author
-
Zhang, Z.L., Khalid, M.S.U., Long, T., Chang, J.Z., and Liu, M.B.
- Subjects
- *
FINITE element method , *TANKS , *SLOSHING (Hydrodynamics) , *STRUCTURAL failures , *DEFORMATION of surfaces , *ENGINEERING systems , *BENCHMARK problems (Computer science) - Abstract
Liquid sloshing in partially filled containers is widely observed in various engineering systems where the forces exerted by the liquid on tank walls may result in the instability of tank or even a structural failure. To enhance the hydrodynamic damping ratio and consequently decrease the sloshing forces, baffles have been designed as effective internal components inside containers in most of the practical engineering problems. In this work, we numerically investigate the sloshing mitigation using elastic baffles through our recently developed methodology based on the coupling strategy of smoothed finite element method (SFEM) and an improved version of smoothed particle hydrodynamics (SPH) offering better accuracy. First, we simulate a benchmark problem of sloshing flow interacting with an elastic baffle installed in a container, and the numerical results agree well with the experimental data. Further, various cases are conducted to study the sloshing mitigation by using deformable baffles with different configurations and elasticities. Our current observations and findings based on the simulation results demonstrate that the impact pressure on the tank wall is significantly influenced by the geometric orientations and complex configurations of elastic baffles. The timing of sloshing flow impacting on the container wall can be passively controlled by adequately choosing the baffle elasticity. The damping performances of different elastic baffles are quantified by the numerically obtained Pressure - E b a f f l e lines. The relevant analysis in this paper can greatly help explore the effective solutions to mitigate the liquid sloshing in engineering systems. • The coupling method is extended to investigate the sloshing mitigation using elastic baffles. • The coupling method obtains smooth pressure/stress fields and accurate structural deformations. • The damping effects of complex deformable baffles are comparatively studied. • The sloshing flow impacting on the container can be passively controlled by choosing the baffles. • The elastic baffles with the best damping performance are determined by the P- E b a f f l e lines. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF