Numerical Analysis of Convective Heat Transfer in Nanofluid

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2008

Autores

Rouboa, A (Autor) Outra; Silva, A (Autor) Outra; Freire, AJ (Autor) Outra; Borges, A (Autor) Outra; Ribeiro, J (Autor) Outra; Silva, P (Autor) Outra; J L Alexandre (Autor) FEUP

Ata de Conferência Internacional

Título: NUMERICAL ANALYSIS AND APPLIED MATHEMATICS

Páginas: 819-822

International Conference on Numerical Analysis and Applied Mathematics

Psalidi, GREECE, SEP 16-20, 2008

Indexação

ISI Web of Knowledge - 5 Citações

Scopus - 10 Citações

Outras Informações

ID Authenticus: P-004-49K

DOI: 10.1063/1.2991057

Abstract (EN): The main objective of this study is to analyze the heat convection through nanofluids, Al2O3 nanoparticle-water mixture (7% of particle volume concentration), flowing inside an open system. This study was performed numerically in two dimensional geometry (box) combining fluid flow and heat transfer. The commercial code Ansys (R) was used to compute the fluid flow and heat transfer between entrance on the lop, left of the box and the exit on the bottom right. The finite volume method was used to discretize the whole domain in quadratic elements and to linearise the turbulence model. This model was governed by a Re-Normalized Group Turbulence Model (RNG) turbulence differential equations system coupled with the heat convection. Velocity and temperature in the exit were calculated as function of initial conditions (velocity and temperature) in the entrance of the box (top left). Velocity about 10 m/s and temperatures between 100 K and 300 K were imposed in the entrance. Results showed that the heat transfer in nanofluid, is higher under low temperatures.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4