Gonzalo Chávez - Academia.edu (original) (raw)
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Papers by Gonzalo Chávez
International Journal of Thermal Sciences, 2008
A two-dimensional numerical study of combined heat transfer (laminar and turbulent natural convec... more A two-dimensional numerical study of combined heat transfer (laminar and turbulent natural convection, surface thermal radiation and conduction) in a square cavity with a glass wall is presented. The cavity is modeled as one vertical isothermal wall, two horizontal adiabatic walls and one vertical glass wall. Numerical results in the cavity are obtained by means of a control volume approach where the conditions are set as: 21 • C uniform temperature in the isothermal wall, 35 • C outside ambient temperature and 750 W/m 2 constant direct normal solar irradiation over the glass wall. The Rayleigh number was varied between the range 10 3 Ra 10 12 . Results show that the flow pattern is not symmetric due to the combined effect of non-isothermal glass wall and radiative exchange inside the cavity. A correlation for the total Nusselt number was obtained for both laminar and turbulent flow considering conjugate heat transfer.
International Journal of Thermal Sciences, 2008
A two-dimensional numerical study of combined heat transfer (laminar and turbulent natural convec... more A two-dimensional numerical study of combined heat transfer (laminar and turbulent natural convection, surface thermal radiation and conduction) in a square cavity with a glass wall is presented. The cavity is modeled as one vertical isothermal wall, two horizontal adiabatic walls and one vertical glass wall. Numerical results in the cavity are obtained by means of a control volume approach where the conditions are set as: 21 • C uniform temperature in the isothermal wall, 35 • C outside ambient temperature and 750 W/m 2 constant direct normal solar irradiation over the glass wall. The Rayleigh number was varied between the range 10 3 Ra 10 12 . Results show that the flow pattern is not symmetric due to the combined effect of non-isothermal glass wall and radiative exchange inside the cavity. A correlation for the total Nusselt number was obtained for both laminar and turbulent flow considering conjugate heat transfer.