Thermal and ventilation modelling of large highly-glazed spaces

Validation of computational fluid dynamics simulations for atria geometries

“…There was no iteration between the thermal and velocity equations. Voeltzel et al [8] created a program named AIRGLAZE, which solves the mass equation, enthalpy equation and the perfect gas law equation, but not the momentum equation. They produced good average results for the temperature peaks in the building but did not predict the stratification that occurred.…”

“…This allows for the temperature difference between each zone to model the stratification and has had some success. Voeltzel et al [8] showed increased accuracy by treating the air in the atria as separate zones rather than a homogenous mixture and accommodating long wave radiation between objects.…”

“…Voeltzel et al [8] found that a specialized process had to be used to determine the coefficient of heat transfer for the wall. To work, the programs required specific conditions such as isothermal walls, which may not be practical in a real building.…”

“…To achieve dynamic similarity the properties of the fluid must be changed, this is typically done by either replacing the air with water or pressurizing the air in the model to increase density [17]. The experimental data used in Voeltzel et al [8] was collected from model atria only 5 m in height and did not show stratification. Ozeki et al [18] modeled several atria using a low Re kee turbulence model.…”

Modeling coupled heat transfer and air flow in a partitioned building with a zonal model: Application to the winter thermal comfort

“…We shall quote particularly the model SAMIRA (Bouia 1993), the model POMA (Haghighat et al 2001), the model AIRGLAZE (Voeltzel et al 2001), and the zonal model of Wurtz (Wurtz et al 2000) that was integrated into the object-oriented environment SPARK (Buhl et al 1993). Further, the zonal model processes has been applied to the COMIS computer program to produce COMIS with subzones (CWSZ) (Ren and Stewart 2003).…”