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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A CFD-based Approach to Predict Explosion Overpressure: A Comparison to Current Methods
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 source of energy corresponds to the one produced by a stoichiometric proportion in reactants without energy generation. The explosion analysis considered that explosion occurs geometrically as a sequence of control volumes. Thus, the explosion in a volume is assumed to occur when the maximum pressure is achieved in the previous control volume. This way, the explosion is propagated and it is shown that it is equivalent to conventional predicting methods.
A CFD-based Approach to Predict Explosion Overpressure: A Comparison to Current Methods
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 source of energy corresponds to the one produced by a stoichiometric proportion in reactants without energy generation. The explosion analysis considered that explosion occurs geometrically as a sequence of control volumes. Thus, the explosion in a volume is assumed to occur when the maximum pressure is achieved in the previous control volume. This way, the explosion is propagated and it is shown that it is equivalent to conventional predicting methods.
A CFD-based Approach to Predict Explosion Overpressure: A Comparison to Current Methods
Díaz-Ovalle, C. (Autor:in) / López-Molina, A. (Autor:in) / Vázquez-Román, R. (Autor:in)
06.01.2017
Chemical and biochemical engineering quarterly ; ISSN 0352-9568 (Print) ; ISSN 1846-5153 (Online) ; Volume 30 ; Issue 4
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
explosion , overpressure , CFD , TNO method
DDC:
690