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The paper presents results obtained on the prediction of three-dimensional turbulent heat transfer to CO 2 at supercritical pressure, flowing upward through heated vertical passages of non-circular cross-section. The problem is relevant to certain technical applications, including the cooling of fuel bundles in supercritical water nuclear reactors. Several k–ε turbulence models, implemented...
The paper presents the results of the application of computational fluid dynamics in the prediction of unstable behaviour in heated channels containing supercritical fluids. The work is conceived to extend and discuss previous work made with one-dimensional codes, taking profit of the greater detail provided by CFD.In particular, a single channel with cross section area and heating power similar to...
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