Abstract
The highly viscous liquid (glycerin) sloshing is investigated numerically in this study. The full-scale membrane-type tank is considered. The numerical investigation is performed by applying a two-phase numerical model based on the spatially averaged Navier-Stokes equations. Firstly, the numerical model is validated against the available numerical model and a self-conducted experiment then is applied to systematically investigate the full-scale sloshing. In this study, two filling levels (50% and 70% of the tank height) are considered. The fluid kinematic viscosity is fixed at a value being 6.0 × 10−5 m2/s with comparative value to that of the crude oil. A wide range of forcing periods varying from 8.0 s to 12.0 s are used to identify the response process of pressures as well as free surface displacements. The pressures are analyzed along with breaking free surface snapshots and corresponding pressure distributions. The slamming effects are also demonstrated. Finally, the frequency response is further identified by the fast Fourier transformation technology.
Highlights
Liquid sloshing in partially filled LNG (Liquefied Natural Gas)/crude-oil carriers may occur under different sea conditions
The results reveal reveal that the present present numerical model is of of good good accuracy accuracy in less aa whole, results that numerical is in crests agrees well enough, but there exists some discrepancy at the troughs with the maximal error modeling sloshing sloshing in inthe themembrane-type membrane-typetank
The numerical model was validated against a selfscale prismatic tank is numerically investigated
Summary
Liquid sloshing in partially filled LNG (Liquefied Natural Gas)/crude-oil carriers may occur under different sea conditions. There exists uncertainty when the measured impact load from the model test is scaled up to the real size [1], and the liquid viscosity has important effects on sloshing pressure [2,3,4]. Developed a three-dimensional finite-element method to calculate the impact pressure due to liquid sloshing in the LNG tank. Xin and Lin [14] adopted the spatially averaged Navier-Stokes turbulence model to study the viscous effects on horizontally and multi-degree freedom excited sloshing, and the threshold of liquid viscosity that the response regularity shifts were obtained numerically. The numerical validations of the sloshing especially the highly viscous fluids will be carried out with a self-conducted experiment test and available numerical data, and the sloshing of the real-scale membrane-type tank was studied. The frequency responses are identified by the fast Fourier transformation technology
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
