Session: 12-02-03 Wave-Structure Interactions III

Paper Number: 127187

127187 - Sloshing Characteristics of Herschel-Bulkley Type Non-Newtonian Fluids 

Liquid sloshing is a classic yet challenging hydrodynamics problem with many potential engineering applications. Sloshing may induce the generation of violent interface waves, which can lead to detrimental effects such as slamming and fatigue damage to the structure, or more serious accidents such as the capsizing of cargo ships. This study focuses on the sloshing characteristics of Herschel-Bulkley type non-Newtonian liquids, i.e., crude oil or liquified nickel slurries, aiming to enrich the understanding of the special sloshing characteristics of non-Newtonian fluids. The nonlinear characteristics, generation and evolution mechanism, and other fundamental properties of sloshing interfacial waves will be investigated experimentally and numerically. The differences between non-Newtonian and Newtonian fluid sloshing, including wave height response, frequency energy spectrum distribution, and the evolution of flow field and vortex patterns will be compared and analyzed. The engineering implication of the sloshing in the stability analysis of a cargo container shipping such liquids in extreme ocean wave conditions will be explored, taking into account the combined influences of the forced moment and the recovery moment. Furthermore, parametric analyses will be conducted to investigate the roles of the key non-Newtonian factors, i.e., the consistency index, power-law index, yield stress, on changing the sloshing characteristics.

Keywords: Liquid sloshing; Herschel-Bulkley type fluids; non-Newtonian fluids; sloshing characteristics; ship capsizing

Presenting Author: Pengzhi Lin Sichuan University

Presenting Author Biography: Professor of Sichuan University

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