Abstract

The grounded or collided oil tankers are often subjected to periodic motions, which excites the liquid sloshing inside the cargo tanks and influences the oil spilling. This paper presents a systematic numerical investigation of the effects of the tank motions on the oil spilling from damaged oil tanks by using a VOF-based multiphase flow solver with the assistance of dynamic mesh techniques. For simplicity, only the two-dimensional single-hull tank (SHT) subjected to pre-specified periodic motions with different frequencies and amplitudes is considered. The results suggest that the tank motion does not only cause a periodic oscillation of the oil/water flow through the broken hole, but also results in a second long-duration stage of spilling after a quasi-hydrostatic-equilibrium condition occurs, leading to more significant amount of spilled oil.

Publication Type:	Article
Subjects:	T Technology > TC Hydraulic engineering. Ocean engineering
Departments:	School of Science & Technology > Engineering

Text - Accepted Version This document is not freely accessible due to copyright restrictions.

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