The effect of the computational grid size on the prediction of a flammable cloud dispersion
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Estadístiques de LA Referencia / Recolecta
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/24144
Tipus de documentText en actes de congrés
Data publicació2014
Condicions d'accésAccés obert
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
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.
CitacióSchleder, A.M. [et al.]. The effect of the computational grid size on the prediction of a flammable cloud dispersion. A: OMAE2014 - 33th International Conference on Ocean, Offshore and Arctic Engineering. "Proceedings of the ASME 2014 33th International Conference on Ocean, Offshore and Arctic Engineering - OMAE2014". Sant Francisco: 2014, p. 1-9.
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OMAE2014-24587.pdf | 1,185Mb | Visualitza/Obre |