Acoplamento neutrônico e termo-hidráulico usando os códigos milonga e OpenFOAM: uma abordagem com software livre

• Ano de defesa: 2016
• Autor(a) principal: Vitor Vasconcelos Araujo Silva
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Minas Gerais; UFMG
• Palavras-chave em Português: OpenFOAM; finitos; Volumes; Neutrônica; Termo-hidráulica; Acoplamento; Milonga; Free software; Método dos volumes finitos; Engenharia nuclear; Reatores nucleares; Software livre
• Link de acesso: http://hdl.handle.net/1843/BUOS-APCNW3

The development of a fine mesh coupled neutronics/thermal-hydraulics framework mainly using open source software is presented. The contributions proposed go in two different directions: one, is the focus on the open software development, a concept widely spread in many fields of knowledge but rarely explored in the nuclear engineering field; the second, is the use of operating system shared memory as a fast and reliable storage area to couple the computational fluid dynamics (CFD) software OpenFOAM to the free and flexible reactor core analysis code milonga. This concept was applied to simulate the behavior of the TRIGA Mark 1 IPR-R1 reactor fuel pin in steady-state mode. The macroscopiccross-sections for the model, a set of two-group cross-sections data, were generated using WIMSD-5B code. The results show that this innovative coupled system gives consistent results, encouraging system further development and its use for complex nuclear systems.