Model experiment on the dynamic process of oil leakage from the double hull tanker

Lu, Jinshu; Yang, Zhenbo; Wu, Haoxiao; Wu, Wei; Liu, Fengchen; Xu, Song; Yang, Hao; Yan, Shiqiang

doi:10.1016/j.jlp.2016.05.013

Cited by 6 publications

(2 citation statements)

References 7 publications

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“…The flow characteristics could be more complex due to the effect of turbulence, viscosity, air bubbles, and droplet size distribution. On the other hand, studies [31,35,54] also developed models to estimate the oil flow through the rupture as the orifice flow governed by the modified Bernoulli's equation.…”

Section: Time-dependent Oil Discharge Dynamics For Oil Spill Modelmentioning

confidence: 99%

Non-linear source term and scenario for an operational oil spill model

et al. 2020

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This study presents time-varying oil spill discharge functions and scenarios for operational oil spill models. This study prescribes non-linear models based on experimental measurements (Tavakoli et al. in Ocean Eng 38(17–18):1894–1907, 2011) and then upscaled to the spill duration and discharge quantity for actual oil spill incidents. Scenarios consist in collision and grounding incidents for the instantaneous spill mode; light, medium, and severe incidents for the continuous spill mode; spilt, containment, and retention practices for the spill management mode. A performance analysis of deterministic simulations indicates that the non-linear source terms and scenarios present realistic and reasonable results, showing the detailed spill patterns on the surface ocean, tail-off oil sheens along the areas swept by the dispersion and significantly different results when oil spill management and mitigation practices are activated. For oil spill modelling in support of field operations, responders and decision makers should be made aware of the variability of oil sheen spatial patterns induced by the oil spill source term to better interpret simulation results and assess the impact of source uncertainty on the clean-up, mitigation, ecological and socio-economic risk.

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Section: Time-dependent Oil Discharge Dynamics For Oil Spill Modelmentioning

confidence: 99%

Non-linear source term and scenario for an operational oil spill model

et al. 2020

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“…This shows a satisfactory agreement on predicting the pressure caused by liquid sloshing in the cargo tank. a. T=3.14s, A=4 b. T=3.14s, A=8 Fig.5 Comparison of impact pressure with the experimental results of Akyildız Fig.6 Comparison of crude oil leakage from cargo tank between experimental and numerical resultsWe have carried out the model test for the oil leakage from fixed damaged DHT(Lu et al,2014(Lu et al, ,2015(Lu et al, ,2016. The corrsponding results are used here for validation purpose.Some results are shown inFig.6.…”

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confidence: 99%

Effects of tank sloshing on submerged oil leakage from damaged tankers

Yang

et al. 2018

Ocean Engineering

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In order to gain advanced understanding of the mechanism of the submerged oil leakage from damaged tankers subjected to wave-excited motions, a three-dimensional (3D) full scale numerical model is developed in this paper. The model is based on the three-phase Navier-Stokes equation and the continuity equation, which are solved by using the finite volume method (FVM). The volume of fluid (VOF) method is implemented to identify the interfaces between different phases and the k-ε turbulence model is employed to approximate the turbulence effects. The prototype of the oil tanker is taken as the side tank of VLCC, which is subjected to a periodically forced motions yielding a liquid sloshing inside the tank. After being validated by comparing its prediction with experimental data, the present model is utilized to a systematic investigation with wide range of applications including different motion amplitudes and periods. The dynamic characteristics of both the macroscopic parameters, e.g. the volume of the oil/water, and the microscopic parameters, e.g. the velocity distributions, are analyzed. The results fill the gap in the existing numerical and experimental work, in which the tank is assumed to be stationary, and produce a more reliable prediction on the dynamic process of the oil leakage and the stability of the damaged oil tankers subjected to wave actions.

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