Published 1986
| Version v1
Miscellaneous
A model of the fluid temperature field in a turbulent flow parallel to heated tube bundle
Creators
Description
Basic understanding of thermal-hydraulic phenomena is essential to achieving reactor fuel assembly performance analysis. In this paper, a dimensionless parameter - a normalized fluid temperature - is defined and applied to fluid temperature measurements at particular positions at the exit plane of a bank of nine heated tubes, under different transverse heat flux shapes. This parameter presents an asymptotic trend to equilibrium values, which depend upon considered positions and flux shapes; when increasing the bulk Reynolds Number. Proposed correlations underlie the present approach to predict the fluid temperature field within the tube bundle. (Author)
Abstract (Portuguese)
O conhecimento basico dos fenomenos termo-hidraulicos e fundamental na analise do desempenho dos feixes combustiveis nucleares. Neste trabalho, um parametro adimensional - uma temperatura normalizada de fluido - e definido e aplicado a valores medidos de temperatura em pontos caracteristicos, no plano de sada do refrigerante, de feixe de nove tubos aquecidos, submetidos a diferentes distribuicoes transversais de fluxo de calor. Este parametro apresenta tendencia assintotica a valores de equilibrio, os quais dependem da localizacao do ponto considerado e das formas de fluxo, quando de aumenta o Numero de Reynolds do escoamento. Correlacoes propostas constituem a base de aplicacao do modelo, permitindo a analise do campo de temperatura de fluido no feixe de tubos. (Autor)Additional details
Additional titles
- Original title (Portuguese)
- Um modelo de estudo do campo de temperatura de fluido em escoamento turbulento paralelo a feixe de tubos aquecidos
Publishing Information
- Imprint Title
- Proceedings of the 1. General Congress of Nuclear Energy. v. 1
- Imprint Pagination
- 430 p.
- Journal Page Range
- v. 1 p. 367-370.
- Report number
- INIS-BR--537(v.1)
Conference
- Title
- 1. General Congress of Nuclear Energy.
- Dates
- 17-20 Mar 1986.
- Place
- Rio de Janeiro, RJ (Brazil).
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 17068786
- Subject category
- S42: ENGINEERING;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- FUEL ASSEMBLIES; HEAT FLUX; MATHEMATICAL MODELS; TEMPERATURE DISTRIBUTION; TURBULENT FLOW
- Descriptors DEC
- FLUID FLOW
Optional Information
- Notes
- Imprint:Anais do 1. Congresso Geral de Energia Nuclear. v. 1.