Numerical analysis of mixed mode convection in 3D cavity: Application to air refreshment in buildings

Abstract

A domain with classical dimension has been studied numerically by STARCCM+ based on recent research and innovation in the field of Energy and Buildings. Conceiving temperature range of summer (May-July) in southern France, Mixed mode (Mechanical ventilation through inlet, Natural ventilation in room) ventilation method has considered as a mean of air refreshment in a classical room. Moreover, numerical analysis has performed at Reynolds Number (Re) 8.6 x 102, 1.7 x 103 to examine effects of inlet angle (horizontal, inclined) and domain wall thickness in air refreshment. Finally, all the parameters have compared by bulk temperature on horizontal planes and heat transferred from domains to find out the optimum solution.