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Massively Parallelized Simulation of Deflagration-to-Detonation Transition in a Konvoi-Type Pressurized Water Reactor

Hasslberger, Josef and Katzy, Peter and Sattelmayer, Thomas and Boeck, Lorenz R. (2016) Massively Parallelized Simulation of Deflagration-to-Detonation Transition in a Konvoi-Type Pressurized Water Reactor. In: 24th International Conference on Nuclear Engineering. Vol.5. American Society of Mechanical Engineers , New York, NY, Art. No. V005T15A002. ISBN 978-0-7918-5005-3. https://resolver.caltech.edu/CaltechAUTHORS:20161202-083114993

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Abstract

For the purpose of nuclear safety analysis, a reactive flow solver has been developed to determine the hazard potential of large-scale hydrogen explosions. Without using empirical transition criteria, the whole combustion process (including DDT) is computed within a single solver framework. In this paper, we present massively parallelized three-dimensional explosion simulations in a full-scale pressurized water reactor of the Konvoi type. Several generic DDT scenarios in globally lean hydrogen-air mixtures are examined to assess the importance of different input parameters. It is demonstrated that the explosion process is highly sensitive to mixture composition, ignition location and thermodynamic initial conditions. Pressure loads on the confining structure show a profoundly dynamic behavior depending on the position in the containment.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1115/ICONE24-60093DOIArticle
http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=2577243PublisherArticle
Additional Information:© 2016 ASME. Paper No. ICONE24-60093.
Subject Keywords:Explosions, Simulation, Pressurized water reactors
Record Number:CaltechAUTHORS:20161202-083114993
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20161202-083114993
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:72515
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:02 Dec 2016 22:58
Last Modified:03 Oct 2019 16:18

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