Conference Proceedings Paper
A CFD Benchmarking Exercise Based on Flow Mixing in a T-Junction
NURETH-14 - 2011 September 25-30
Brian L. Smith (Paul Scherrer Institut)
John H. Mahaffy (U.S. Nuclear Regulatory Commission)
Kristian Angele (Vattenfall R&D, Sweden)
The paper describes an international benchmarking exercise, sponsored by the OECD Nuclear Energy Agency, aimed at testing the ability of state-of-the-art Computational Fluid Dynamics (CFD) codes to predict the important flow parameters affecting high-cycle thermal fatigue induced by turbulent mixing in T-junctions. Numerical simulations were compared against measured data from an experiment performed at 1:2 scale by Vattenfall Research and Development, Älvkarleby, Sweden. The test data were released only at the end of the exercise. Details of the organizational procedures, the experimental set-up and instrumentation, the different modeling approaches adopted, synthesis of results and overall conclusions and perspectives are presented.
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