A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Highlights The performance of a bottom-hinged and top-tensioned vertical porous membrane baffle was investigated as an anti-sloshing device. Analytical model based on matched eigenfunction expansion method with Green function and empirically-tunned Darcy's law was developed. Free-surface elevations, hydrodynamic forces, responses of membrane, and sloshing loads were investigated with varying key design parameters.
Abstract Sloshing inside liquid containers may result in carrier instability or structural damage of the tank. To suppress the liquid sloshing in a swaying and rolling rectangular tank, a bottom-hinged and top-tensioned vertical porous membrane baffle at the center of the tank was employed and its performance as an anti-sloshing device was investigated. As a hydroelastic theoretical-analysis tool, a matched eigenfunction expansion method (MEEM) with Green function and empirically-tuned Darcy's model for the sloshing interaction with the vertical porous membrane is developed. The representative numerical results were validated through comparisons with two separate experimental results. Then, the numerical tool was repeatedly used for extensive parametric investigations to qualitatively determine optimal design parameters. Free-surface elevations at tank wall, hydrodynamic forces (added mass and damping coefficient) on the tank, responses of membrane, and wave loads on the porous membrane baffle are systematically analyzed with varying key design parameters. It is shown that the tensioned porous membrane baffle can be an effective, temporary anti-sloshing measure when needed. The developed computer program can repeatedly be used to find the optimal design parameters during the initial design stage.
Highlights The performance of a bottom-hinged and top-tensioned vertical porous membrane baffle was investigated as an anti-sloshing device. Analytical model based on matched eigenfunction expansion method with Green function and empirically-tunned Darcy's law was developed. Free-surface elevations, hydrodynamic forces, responses of membrane, and sloshing loads were investigated with varying key design parameters.
Abstract Sloshing inside liquid containers may result in carrier instability or structural damage of the tank. To suppress the liquid sloshing in a swaying and rolling rectangular tank, a bottom-hinged and top-tensioned vertical porous membrane baffle at the center of the tank was employed and its performance as an anti-sloshing device was investigated. As a hydroelastic theoretical-analysis tool, a matched eigenfunction expansion method (MEEM) with Green function and empirically-tuned Darcy's model for the sloshing interaction with the vertical porous membrane is developed. The representative numerical results were validated through comparisons with two separate experimental results. Then, the numerical tool was repeatedly used for extensive parametric investigations to qualitatively determine optimal design parameters. Free-surface elevations at tank wall, hydrodynamic forces (added mass and damping coefficient) on the tank, responses of membrane, and wave loads on the porous membrane baffle are systematically analyzed with varying key design parameters. It is shown that the tensioned porous membrane baffle can be an effective, temporary anti-sloshing measure when needed. The developed computer program can repeatedly be used to find the optimal design parameters during the initial design stage.
Effect of a bottom-hinged, top-tensioned porous membrane baffle on the sloshing reduction in a rectangular tank
Applied Ocean Research ; 104
2020-08-21
Article (Journal)
Electronic Resource
English
Sloshing of Liquid in Rectangular Tank
| British Library Conference Proceedings | 2014