Application of computational fluid dynamics for LNG vapor dispersion modeling: A study of key parameters

Cormier, Benjamin R.; Qi, Ruifeng; Yun, Geunwoong; Zhang, Yingchun; Mannan, M. Sam

doi:10.1016/j.jlp.2008.12.004

Cited by 85 publications

(57 citation statements)

References 14 publications

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“…Recent advancements in computation capabilities, including processing capacity and memory space, have made it possible for engineers to use CFD to solve complex fluid flow problems. CFD models are able to provide a detailed description of physical processes and handle complex geometries, and can thus be used to predict the behavior of LNG vapor cloud dispersion in a site-specific risk analysis [10][11][12][13][14][15]. However, CFD simulation setup methods for LNG vapor dispersion and their validation against actual large or medium-scale spill tests have not been sufficiently reported in the literature.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulations of LNG vapor dispersion in Brayton Fire Training Field tests with ANSYS CFX

Cormier

et al. 2010

Journal of Hazardous Materials

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Section: Introductionmentioning

confidence: 99%

Numerical simulations of LNG vapor dispersion in Brayton Fire Training Field tests with ANSYS CFX

Cormier

et al. 2010

Journal of Hazardous Materials

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“…perform consequences analysis has grown in recent years [1][2][3][4]. CFD is found in some commercial software tools such as ANSYS, FLACS, FLUENT, PHOENIX and COMSOL Multiphysics.…”

Section: Omae2014-24587mentioning

confidence: 99%

The Effect of the Computational Grid Size on the Prediction of a Flammable Cloud Dispersion

Schleder

Martins

Ferrer

et al. 2014

Volume 4B: Structures, Safety and Reliability

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The consequence analysis is used to define the extent and nature of effects caused by undesired events being of great help when quantifying the damage caused by such events. For the case of leaking of flammable and/or toxic materials, effects are analyzed for explosions, fires and toxicity. Specific models are used to analyze the spills or jets of gas or liquids, gas dispersions, explosions and fires. The central step in the analysis of consequences in such cases is to determine the concentration of the vapor cloud of hazardous substances released into the atmosphere, in space and time. With the computational advances, CFD tools are being used to simulate short and medium scale gas dispersion events, especially in scenarios where there is a complex geometry. However, the accuracy of the simulation strongly depends on diverse simulation parameters, being of particular importance the grid resolution. This study investigates the effects of the computational grid size on the prediction of a cloud dispersion considering both the accuracy and the computational cost.Experimental data is compared with the predicted values obtained by means of CFD simulation, exploring and discussing the influence of the grid size on cloud concentration the predicted values.This study contributes to optimize CFD simulation settings concerning grid definition when applied to analyses of consequences in environments with complex geometry. INTRODUCTIONAs a result of the industrial and technological development, the presence of flammable and toxic substances has significantly increased in a number of activities. While flammable substances are used as energy sources, toxic substances are used in a huge number of industrial processes, and frequently the flammable and toxic substances are present in the same process. Activities related to the supply chain of oil and its derivatives is a current example; these substances are present in the activities of offshore and onshore production plants, in the storage and transport process and in the process of delivery to the final consumer.Although these substances are essential nowadays, there are risks involved in their manipulation, storage and transportation that should be controlled whenever possible. The consequence analysis is used to define the extent and nature of effects caused by undesired events on individuals, buildings, equipment and on the environment. For the case of leaking flammable and/or toxic materials, consequences are analyzed for explosions, fires and toxicity.The central step in this type of analysis is to determine the concentration of the vapor cloud of hazardous substances released into the atmosphere, in space and time. On the basis of this approach, the use of numerical methods associated with different algorithms of computational fluid dynamics (CFD) to

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“…The CFD codes have the capability to define flow physics, taking into consideration complex geometry and its effects on vapour dispersion [5]. In situations where the safety analyses indicate that the well-being of the general public is endangered, by applying CFD models we can improve the analysis of site-specific hazards [6].…”

Section: Introductionmentioning

confidence: 99%

Impact of LNG Vapor Dispersion on Evacuation Routes inside LNG Terminals

2018

SV-JME

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Application of computational fluid dynamics for LNG vapor dispersion modeling: A study of key parameters

Cited by 85 publications

References 14 publications

Numerical simulations of LNG vapor dispersion in Brayton Fire Training Field tests with ANSYS CFX

Numerical simulations of LNG vapor dispersion in Brayton Fire Training Field tests with ANSYS CFX

The Effect of the Computational Grid Size on the Prediction of a Flammable Cloud Dispersion

Impact of LNG Vapor Dispersion on Evacuation Routes inside LNG Terminals

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