Benchmarking of calculation schemes in Apollo2 and COBAYA3 for VVER lattices

Zheleva, Nonka; Ivanov, Plamen; Todorova, Galina; Kolev, Nikola y Herrero Carrascosa, José Javier (2013). Benchmarking of calculation schemes in Apollo2 and COBAYA3 for VVER lattices. En: "International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2013)", 05/05/2013 - 09/05/2013, San Valley, EEUU. ISBN 978-0-89448-700-2. pp. 1-14.

Descripción

Título: Benchmarking of calculation schemes in Apollo2 and COBAYA3 for VVER lattices
Autor/es:
  • Zheleva, Nonka
  • Ivanov, Plamen
  • Todorova, Galina
  • Kolev, Nikola
  • Herrero Carrascosa, José Javier
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2013)
Fechas del Evento: 05/05/2013 - 09/05/2013
Lugar del Evento: San Valley, EEUU
Título del Libro: International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2013)
Fecha: 2013
ISBN: 978-0-89448-700-2
Materias:
Palabras Clave Informales: APOLLO2, MOC, COBAYA3 pin-by-pin, VVER-1000, lattice benchmarks
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

This paper presents solutions of the NURISP VVER lattice benchmark using APOLLO2, TRIPOLI4 and COBAYA3 pin-by-pin. The main objective is to validate MOC based calculation schemes for pin-by-pin cross-section generation with APOLLO2 against TRIPOLI4 reference results. A specific objective is to test the APOLLO2 generated cross-sections and interface discontinuity factors in COBAYA3 pin-by-pin calculations with unstructured mesh. The VVER-1000 core consists of large hexagonal assemblies with 2mm inter-assembly water gaps which require the use of unstructured meshes in the pin-by-pin core simulators. The considered 2D benchmark problems include 19-pin clusters, fuel assemblies and 7-assembly clusters. APOLLO2 calculation schemes with the step characteristic method (MOC) and the higher-order Linear Surface MOC have been tested. The comparison of APOLLO2 vs.TRIPOLI4 results shows a very close agreement. The 3D lattice solver in COBAYA3 uses transport corrected multi-group diffusion approximation with interface discontinuity factors of GET or Black Box Homogenization type. The COBAYA3 pin-by-pin results in 2, 4 and 8 energy groups are close to the reference solutions when using side-dependent interface discontinuity factors.

Más información

ID de Registro: 25989
Identificador DC: http://oa.upm.es/25989/
Identificador OAI: oai:oa.upm.es:25989
URL Oficial: http://www.mc2013.org/
Depositado por: Memoria Investigacion
Depositado el: 14 May 2014 12:36
Ultima Modificación: 22 Sep 2014 11:39
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