Current Status and Future Direction of Full-Scale Vibration Simulator for Entire Nuclear Power Plants

K. Uzawa (), T. Watanabe (), A. Nishida (), Y. Suzuki () and H. Takemiya ()
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K. Uzawa: Center for Computational Science and E-systems, Japan Atomic Energy Agency
T. Watanabe: Center for Computational Science and E-systems, Japan Atomic Energy Agency
A. Nishida: Center for Computational Science and E-systems, Japan Atomic Energy Agency
Y. Suzuki: Center for Computational Science and E-systems, Japan Atomic Energy Agency
H. Takemiya: Center for Computational Science and E-systems, Japan Atomic Energy Agency

A chapter in High Performance Computing on Vector Systems 2011, 2011, pp 171-184 from Springer

Abstract: Abstract CCSE/JAEA promotes the research and development of the three- dimensional vibration simulator for seismic evaluation of a nuclear power plant (NPP) to further improve reliability of seismic safety of NPPs. We have applied this simulator to elastic analysis of the reactor pressure vessel and cooling systems of a nuclear research facility called the High Temperature engineering Test Reactor (HTTR). We have also developed the capability to analyze seismic fluid phenomena in the virtual vibration simulator by implementing OpenFOAM on a supercomputer at JAEA in order to analyze the operating conditions and transitional phenomena of an NPP. We have implemented a function to simulate two-phase turbulence. As a first step investigated the effect of turbulence on the dynamics of three-dimensional dam break flow on the basis of the incompressible Reynolds-averaged Navier-Stokes (RANS) equations with the volume of fluid (VOF) function. We have found that when the Launder-Gibson (LG) model is used, the tip velocity over the ground and impact pressure on the vertical wall are in good agreement with experimental results.

Keywords: Nuclear Power Plant; Impact Pressure; Seismic Evaluation; Reactor Pressure Vessel; Seismic Safety (search for similar items in EconPapers)
Date: 2011
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DOI: 10.1007/978-3-642-22244-3_12

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