Experimental investigation and CFD analysis of cross-ventilated flow through single room detached house model

CFD simulation of cross-ventilation for a generic isolated building: Impact of computational parameters

“…Indeed, the so-called sealed-body assumption in the decoupled approach implies that the pressure distribution on the building envelope is not affected by the presence of the openings [20,21,25]. It assumes that the turbulent kinetic energy is dissipated at the windward opening and that the effect of the dynamic pressure on the air flow passing through the opening is negligible [20,25,28,39,73,92]. However, Murakami et al [20], Kato et al [21], Sandberg [93], Karava et al [16,28], Kobayashi et al [71,73] correctly pointed out that in case of wind flow through large ventilation openings, the turbulent kinetic energy is rather preserved and the sealed-body assumption is therefore not longer valid.…”

“…It assumes that the turbulent kinetic energy is dissipated at the windward opening and that the effect of the dynamic pressure on the air flow passing through the opening is negligible [20,25,28,39,73,92]. However, Murakami et al [20], Kato et al [21], Sandberg [93], Karava et al [16,28], Kobayashi et al [71,73] correctly pointed out that in case of wind flow through large ventilation openings, the turbulent kinetic energy is rather preserved and the sealed-body assumption is therefore not longer valid. A virtual stream-tube model was introduced to explain the direct connection between the inlet and outlet openings [20,21,71,73,93].…”

“…The application of PIV to wind-induced natural ventilation is a quite recent development. Lee et al [58], Kobayashi et al [73], Karava et al [28] have provided extensive PIV measurement data for generic isolated building models.…”

CFD analysis of cross-ventilation of a generic isolated building with asymmetric opening positions: Impact of roof angle and opening location

“…Less studies focused on buildings with a flat roof and with asymmetric opening positions located in the facade (group 2); some examples are [23,[25][26][27]. Several studies analyzed the influence of the roof shape but with symmetric opening positions (in terms of height in the facade; group 3) [31][32][33][34][35][36]. Finally, quite some studies focused on buildings with a pitched roof and asymmetric opening positions (group 4) (e.g.…”

Wind-driven ventilation improvement with plan typology alteration: A CFD case study of traditional Turkish architecture

“…Bangalee, Lin, & Miau, (2012) compared single-sided and cross wind-driven ventilations within an isolated one-storey building using k-ε turbulence model, and Mochida et al, (2006) studied cross-ventilation cooling effect around a building by development of a microclimate model. Kobayashi et al, (2010) used applied Reynolds Stress Model (RSM) to assess wind-driven ventilation flow through different opening sizes of a single room with comparison of the velocity and pressure differences. Furthermore, Chu & Chiang, (2014) investigated wind-driven ventilation of isolated long buildings with internal obstacles using Large Eddy Simulation (LES).…”