Development of an Analytic Nodal Diffusion Solver in Multigroups for 3D Reactor Cores with Rectangular or Hexagonal Assemblies.

Lozano Montero, Juan Andrés; Aragonés Beltrán, José María y García Herranz, Nuria (2009). Development of an Analytic Nodal Diffusion Solver in Multigroups for 3D Reactor Cores with Rectangular or Hexagonal Assemblies.. En: "2nd ENEN Event - International Youth Nuclear Congress ( IYNC ) 2008", 20/09/2008-26/09/2008, Entrelagos, Suiza. ISBN 978-3-9521409-5-6.

Descripción

Título: Development of an Analytic Nodal Diffusion Solver in Multigroups for 3D Reactor Cores with Rectangular or Hexagonal Assemblies.
Autor/es:
  • Lozano Montero, Juan Andrés
  • Aragonés Beltrán, José María
  • García Herranz, Nuria
Director/es:
  • Lozano, Juan Andrés
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 2nd ENEN Event - International Youth Nuclear Congress ( IYNC ) 2008
Fechas del Evento: 20/09/2008-26/09/2008
Lugar del Evento: Entrelagos, Suiza
Título del Libro: Proceedings of 2nd ENEN Event - International Youth Nuclear Congress ( IYNC ) 2008
Fecha: 1 Octubre 2009
ISBN: 978-3-9521409-5-6
Materias:
Escuela: E.T.S.I. Industriales (UPM)
Departamento: Ingeniería Nuclear [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

More accurate modelling of physical phenomena involved in present and future nuclear reactors requires a multi-scale and multi-physics approach. This challenge can be accomplished by the coupling of best-estimate core-physics, thermal-hydraulics and multi-physics solvers. In order to make viable that coupling, the current trends in reactor simulations are along the development of a new generation of tools based on user-friendly, modular, easily linkable, faster and more accurate codes to be integrated in common platforms. These premises are in the origin of the NURESIM Integrated Project within the 6th European Framework Program, which is envisaged to provide the initial step towards a Common European Standard Software Platform for nuclear reactors simulations. In the frame of this project and to reach the above-mentioned goals, a 3-D multigroup nodal solver for neutron diffusion calculations called ANDES (Analytic Nodal Diffusion Equation Solver) has been developed and tested in-depth in this Thesis. ANDES solves the steady-state and time-dependent neutron diffusion equation in threedimensions and any number of energy groups, utilizing the Analytic Coarse-Mesh Finite-Difference (ACMFD) scheme to yield the nodal coupling equations. It can be applied to both Cartesian and triangular-Z geometries, so that simulations of LWR as well as VVER, HTR and fast reactors can be performed. The solver has been implemented in a fully encapsulated way, enabling it as a module to be readily integrated in other codes and platforms. In fact, it can be used either as a stand-alone nodal code or as a solver to accelerate the convergence of whole core pin-by-pin code systems. Verification of performance has shown that ANDES is a code with high order definition for whole core realistic nodal simulations. In this paper, the methodology developed and involved in ANDES is presented.

Más información

ID de Registro: 3485
Identificador DC: http://oa.upm.es/3485/
Identificador OAI: oai:oa.upm.es:3485
URL Oficial: http://www.iync.org/iync2008.html
Depositado por: Memoria Investigacion
Depositado el: 01 Jul 2010 09:08
Ultima Modificación: 20 Abr 2016 13:02
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