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Analysis of flow in rod bundles with velocity and temperature radial dissymmetry using CATHARE-3

Fu, Qinjun and Bestion, Dominique and Fillion, Philippe and Davit, Yohan and Quintard, Michel Analysis of flow in rod bundles with velocity and temperature radial dissymmetry using CATHARE-3. (2019) In: ICAPP 2019 - International Congress on Advances in Nuclear Power Plants, 12 May 2019 - 15 May 2019 (Juan-les-Pins, France). (Unpublished)

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Abstract

CATHARE is a 2-fluid thermal-hydraulic system code, capable of simulating phenomena occurring in the primary and secondary circuits of a PWR (Pressurized Water Reactor) under a wide variety of accidental situations. The latest version CATHARE-3 uses a 3D modeling of a PWR core at the assembly scale to simulate various accidental situations such as the loss of coolant accident (LOCA) or the steam line break accident. This requires that the one-phase and two-phase mixing models are adapted to the assembly scale and that every closure law is validated in a separate way. The code models for the 3D turbulent diffusion and dispersion of momentum and energy have been validated at sub-channel scale against experimental data. In this work, the energy and momentum mixing models are validated at assembly scale with the PNNL and the Weiss tests experimental results, respectively.

Item Type:Conference or Workshop Item (Paper)
HAL Id:hal-02380403
Audience (conference):International conference without published proceedings
Uncontrolled Keywords:
Institution:French research institutions > Commissariat à l'Energie Atomique et aux énergies alternatives - CEA (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
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Deposited On:05 Nov 2019 16:26

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