Numerical Simulation on Partially Liquid-Filled Sloshing with Baffle Under Different Density Ratios by the CLSVOF/IB Method

• Published in: China ocean engineering Vol. 36; no. 6; pp. 922 - 932
• Main Authors: Gu, Zheng-hua, Wang, Ting-hui, Wu, Tie-cheng, Li, Yu-long
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.12.2022; Springer Nature B.V; Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai),Zhuhai 519000,China; College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310058,China%Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai),Zhuhai 519000,China%Technology Centre for Offshore and Marine,Singapore(TCOMS),Singapore
• Subjects: Coastal Sciences; Deformation; Density; Engineering; Fluid- and Aerodynamics; Hyperbolas; Interfaces; Kinematics; Liquid sloshing; Marine & Freshwater Sciences; Mathematical analysis; Methods; Numerical and Computational Physics; Oceanography; Offshore Engineering; Original Paper; Ratios; Simulation; Viscosity; Viscosity ratio; density ratio; CLSVOF; liquid sloshing; immersed boundary; interface
• ISSN: 0890-5487; 2191-8945
• DOI: 10.1007/s13344-022-0081-0

The density and viscosity ratios on partially liquid-filled sloshing with baffle have been investigated numerically in this study. As the key to success in the present simulation, the Coupled Level Set and the Volume of Fluid (CLSVOF) method and the Immersed Boundary (IB) method are used to capture gas/liquid and fluid/structure interfaces, respectively. Within the CLSVOF method, surface normal in weighting factors is calculated by the level set function, resulting in a more accurate solution. Furthermore, the Tangent of Hyperbola for INterface Capturing (THINC) coupled with the Weighted Linear Interface Calculation (WLIC) scheme is used for capturing moving interface. As a standard practice, we first validate the code by comparing it with experimental results of liquid sloshing, which involves large deformation of interface. In addition to the validation study of the present method, the problems of liquid sloshing with baffle are investigated to understand kinematics and dynamics behaviors under different density and viscosity ratios.