| Revista: | Revista mexicana de física |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000368124 |
| ISSN: | 0035-001X |
| Autors: | Montiel González, M1 Hinojosa Palafox, J.F2 Estrada Gasca, Claudio1 |
| Institucions: | 1Universidad Nacional Autónoma de México, Instituto de Energías Renovables, Temixco, Morelos. México 2Universidad de Sonora, Departamento de Ingeniería Química y Metalurgia, Hermosillo, Sonora. México |
| Any: | 2013 |
| Període: | Nov-Dic |
| Volum: | 59 |
| Número: | 6 |
| Paginació: | 594-605 |
| País: | México |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico, teórico |
| Resumen en inglés | In this work the validity of the Boussinesq approach for the heat transfer calculations in an open cavity considering natural convection and surface thermal radiation is studied. Numerical calculations were conducted for Rayleigh number (Ra) values in the range of 104 -106. The temperature difference between the hot wall and the bulk fluid (ΔT) was varied between 10 and 100 K, and was represented as a dimensionless temperature difference (φ). The deviations for the temperature fields and fluid flow patterns, between variable properties and Boussinesq approach are noticeable for φ=0.333. For total Nusselt numbers, the results with Boussinesq approach and variable properties, indicates deviations within 0.22 % (Ra=105 and φ=0.033) and 5 % (Ra=104 and φ=0.333) |
| Disciplines | Física y astronomía |
| Paraules clau: | Dinámica de fluidos, Aproximación de Boussinesq, Convección natural, Radiación térmica, Cavidad abierta |
| Keyword: | Physics and astronomy, Fluid dynamics, Boussinesq approach, Natural convection, Thermal radiation, Open cavity |
| Text complet: | Texto completo (Ver PDF) |
