The effect of surface thermal radiation on heat transfer in a ventilated cavity

J. M.A. Navarro, J. F. Hinojosa*, A. Piña-Ortiz, J. Xamán

*Autor correspondiente de este trabajo

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

2 Citas (Scopus)

Resumen

In this work, experimental and numerical results were obtained to analyze the effect of surface thermal radiation on heat transfer by mixed convection in a ventilated cavity. Experimental temperature profiles were obtained at six different depths and heights consisting of 14 thermocouples each. Five turbulence models were evaluated against experimental data. The radiative heat transfer model was solved with the discrete ordinate method. The effect of thermal radiation on experimental heat transfer coefficients is significant; it increases between 87% (Re = 30,372 and Ra = 3.04 × 1011) and 110% (Re = 6021 and Ra = 2.27 × 1011), when the emissivity of the walls increases from 0.03 to 0.98.

Idioma originalInglés
Número de artículo012801
PublicaciónJournal of Heat Transfer
Volumen143
N.º1
DOI
EstadoPublicada - ene 2021
Publicado de forma externa

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© 2021 by ASME.

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