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

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

Description

Title: Development of an Analytic Nodal Diffusion Solver in Multigroups for 3D Reactor Cores with Rectangular or Hexagonal Assemblies.
Author/s:
  • Lozano Montero, Juan Andrés
  • Aragonés Beltrán, José María
  • García Herranz, Nuria
Contributor/s:
  • Lozano, Juan Andrés
Item Type: Presentation at Congress or Conference (Article)
Event Title: 2nd ENEN Event - International Youth Nuclear Congress ( IYNC ) 2008
Event Dates: 20/09/2008-26/09/2008
Event Location: Entrelagos, Suiza
Title of Book: Proceedings of 2nd ENEN Event - International Youth Nuclear Congress ( IYNC ) 2008
Date: 1 October 2009
ISBN: 978-3-9521409-5-6
Subjects:
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería Nuclear [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (264kB) | Preview

Abstract

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.

More information

Item ID: 3485
DC Identifier: http://oa.upm.es/3485/
OAI Identifier: oai:oa.upm.es:3485
Official URL: http://www.iync.org/iync2008.html
Deposited by: Memoria Investigacion
Deposited on: 01 Jul 2010 09:08
Last Modified: 20 Apr 2016 13:02
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM