Mougin, M Thibault (2024) Implicit integral formulation for modeling congested flow in nuclear core reactors PFE - Project Graduation, ENSTA.

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Abstract

For EDF pressurized water reactors, numerical simulation of core thermal-hydraulics is essential for design and safety studies. THYC-cœur code, developed by EDF R&D, meets this need, allowing to take into account physical constraints. The core, a media packed with various solids, has historically been modeled using homogenized Navier-Stokes equations. Here, we are pursuing the implementation and industrial validation of a new approach to model the core : the integral formulation, based on a non-homogenized model. A verification test case is developed, enabling corrections to be made to its implementation in THYC-cœur. Geometry modeling is extended to multi-assembly cases, and a set of industrial validation cases is treated.

Item Type:Thesis (PFE - Project Graduation)
Uncontrolled Keywords:Congested media, integral formulation, Navier-Stokes equations, thermal-hydraulics, nuclear reactor.
Subjects:Mathematics and Applications
Fluid Mechanics and Energy
ID Code:10287
Deposited By:Thibault MOUGIN
Deposited On:16 sept. 2024 14:44
Dernière modification:16 sept. 2024 14:44

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