| Autor: |
André Bergeron, Bruno Raverdy, Chufa Qiu, Vincent Faucher |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Volume 3: Computational Fluid Dynamics (CFD); Verification and Validation; Advanced Methods of Manufacturing (AMM) for Nuclear Reactors and Components; Decontamination, Decommissioning, and Radioactive Waste Management; Beyond Design Basis and Nuclear Safety; Risk Informed Management and Regulation. |
| Popis: |
This study presents the CFD modeling of the adiabatic rod bundle test (MANIVEL) with a Simple Support Grid (SSG) at a Reynolds number of 100 000. Calculations are carried out on grid using a one-block fully hexahedral mesh. To reduce the computational power requirements, the computational domain is limited to one span with one SSG. The inlet is a fully developed turbulent flow obtained using periodic computations that are applied on two different domains: an inlet box and a span box. The mean axial velocity distribution at different elevations and pressure drop are compared with measurements. Small discrepancies of the mean velocity distributions and of the pressure drop per span are observed between the two types of periodic inlet conditions. The influence of SSG is not negligible and is still present downstream. The application of periodic conditions generated on span box is closer to experimental data and so is more appropriate. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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