Large-Eddy Simulation of a Single-Phase Pressurized Thermal Shock
NURETH-14 - 2011 September 25-30

Presented at:
2011 September 25-30
Toronto, Canada
Session Title:
O7-1 Pressurized Thermal Shock: General Studies

M.S Loginov (Nuclear Research and Consultancy Group, Petten)
A. Shams (Nuclear Research and Consultancy Group, Petten)
K.M.J Komen (Nuclear Research and Consultancy Group, Petten)
T. Hoehne (Forschungszentrum Dresden-Rossendorf )


Pressurized Thermal Shock (PTS) is identified as one of the safety issues where Computational Fluid Dynamics (CFD) can bring real benefits. Turbulence modeling may impact the overall ac- curacy of the calculated thermal loads on the Reactor Pressure Vessel (RPV) walls. Therefore advanced methods for turbulent flows are required. In the current paper, we summarize our ef- forts on large-eddy simulations (LES) of a complex turbulent mixing in the RPV. First, the mesh resolution is investigated, and a comparison procedure is established. The analysis have shown ne- cessity of comparison in both time and frequency domains. Next, a validation against experiment is performed using three cases with different flow rates in the primary loop. The validation results have successfully reproduced the flow patterns and have shown good quantitative agreement for the near-wall temperature drop.

Individual Conference-Paper Copies (Electronic Where Available):

  • For CNS members, the first 5 copies per calendar year are free, and additional copies are $10 each.
  • For non-members, the price is $25 for the first Conference-paper copy in a request, and $10 each for additional copies of papers in the same conference and in the same request.
  • Contact the CNS office to order reprints.