Report of the OECD/NEA-Vattenfall T-Junction Benchmark Exercise

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The OECD/NEA-Vattenfall T-Junction Benchmark was initiated to test the ability of state-of-the-art computational fluid dynamics (CFD) codes to predict the important parameters affecting high-cycle thermal fatigue in mixing tees.

T-junction mixing experiments have been conducted at a number of facilities in France, Germany, Sweden, Japan and Switzerland, but previously unreleased test data became available from tests carried out in November 2008 at the Älvkarleby laboratory of Vattenfall Research and Development in Sweden. These became the basis of the blind CFD benchmarking exercise described in this document.