2017
DOI: 10.15255/cabeq.2015.2244
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A CFD-based Approach to Predict Explosion Overpressure: A Comparison to Current Methods

Abstract: A CFD-based approach has been developed in this work to predict the overpressure produced during an explosion. An adiabatic exothermal reaction allows computing the explosion energy release. To validate the proposed CFD approach, overpressure predictions based on this methodology are compared with results produced with the TNObased method. It is demonstrated that the physics adopted in our model produces satisfactory predictions in the open area. The CFD simulations were carried out in the ANSYS CFX tool. The … Show more

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Cited by 9 publications
(2 citation statements)
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“…By comparison, ANSYS FLUENT is more efficient in predicting explosion wave propagation. C. Diaz-Ovalle et al [24] compared the prediction results of overpressure based on CFD method with those based on the TNO method, and the results show that the physical characteristics adopted by the CFD model can produce satisfactory prediction results in open areas. Eisenreich et al [25] carried out an experimental study in a 100 mm-diameter pipeline with an internal pressure of their airbags between 1.1 and 6.1 MPa, where the impact pressure generated by the shock tube was 0.2-5 MPa.…”
Section: Introductionmentioning
confidence: 99%
“…By comparison, ANSYS FLUENT is more efficient in predicting explosion wave propagation. C. Diaz-Ovalle et al [24] compared the prediction results of overpressure based on CFD method with those based on the TNO method, and the results show that the physical characteristics adopted by the CFD model can produce satisfactory prediction results in open areas. Eisenreich et al [25] carried out an experimental study in a 100 mm-diameter pipeline with an internal pressure of their airbags between 1.1 and 6.1 MPa, where the impact pressure generated by the shock tube was 0.2-5 MPa.…”
Section: Introductionmentioning
confidence: 99%
“…There are a number of simulation-based methodologies that could be used for the analysis of different operational aspects of mechanical systems, including reliability and safety, as well as processes in solid-state materials and in fluids. Such tests might be performed in general by means of the Monte Carlo [27,28] method supported by Fault Tree Analysis (FTA) [29,30], Reliability Block Diagrams (RBD) [31,32], Accelerated Life Testing (ALT) [33], Computational Fluid Dynamics (CFD) [34,35] or the Finite Element Method (FEM) [24,36]. Following the specificity of the analyzed situation (explosion is rapid and extremally dynamic) and of the system that was taken into account (inflation restraining device to which solid-state mechanics are applied), the FEM-based analysis was taken into account as a candidate for the core of the proposed methodology.…”
Section: Introductionmentioning
confidence: 99%