Abstract
In this article, we study a large-break loss of coolant
accident (LBLOCA) where a guillotine break of one of the
main coolant pipes occurs near the reactor pressure
vessel (RPV). This initiates a pressure wave which
propagates inside the RPV. The simulation of
bidirectional fluid-structure interaction phenomena has
been found to be important for accurate prediction of the
resulting deformation and loads. In this article, fully
coupled simulation results are validated against the
German HDR (Heißdampfreaktor) experiments. The
computational fluid dynamic (CFD) software Fluent and
Star-CD are applied to modeling of three-dimensional,
viscous, turbulent fluid flow. The MpCCI code is used for
bidirectional coupling of the CFD simulation to the
structural solver Abaqus. Pressure boundary condition at
the pipe break is obtained in a two-phase simulation with
the system code APROS. Comparisons are made for break
mass flow, wall pressure, displacement and strain. The
simulation results follow the experimental data fairly
well. The sensitivity of the results to pressure boundary
condition and water temperature is studied. In addition,
the necessity of using bidirectional
Original language | English |
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Title of host publication | 2008 Asia Simulation Conference - 7th International Conference on System Simulation and Scientific Computing, ASC-ICSC 2008 |
Publisher | IEEE Institute of Electrical and Electronic Engineers |
Pages | 520-527 |
ISBN (Print) | 978-1-4244-1786-5, 978-1-4244-1787-2 |
DOIs | |
Publication status | Published - 2008 |
MoE publication type | A4 Article in a conference publication |
Event | 2008 Asia Simulation Conference - 7th International Conference on System Simulation and Scientific Computing, ASC-ICSC 2008 - Beijing, China Duration: 10 Oct 2008 → 12 Oct 2008 |
Conference
Conference | 2008 Asia Simulation Conference - 7th International Conference on System Simulation and Scientific Computing, ASC-ICSC 2008 |
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Abbreviated title | ASC-ICSC 2008 |
Country/Territory | China |
City | Beijing |
Period | 10/10/08 → 12/10/08 |