Appropriate ventilation in a classroom is helpful for enhancing air exchange rate and student concentration. This study focuses on the effects of fenestration in a four-story school building by performing numerical simulation of a building when considering indoor and outdoor environments simultaneously. The wind profile function embedded in PHOENICS code was set as the inlet boundary condition ...

The variability of cross-shore thermally driven exchange was examined using ensemble-averages of observations from the Kilo Nalu Observatory on the south shore of Oahu Hawaii. The crossshore vertical shear, δVz, top-bottom temperature difference, ∆Tz, and cross-shore advective heat flux, Qex, were analyzed to evaluate the influence of the surface heat flux, the cross-shore wind and the M2 tide ...

This paper presents a performance evaluation of two passive cooling strategies, daytime ventilation and night cooling, for a generic, six-story suburban apartment building in Beijing and Shanghai. The investigation uses a coupled, transient simulation approach to model heat transfer and airflow in the apartments. Wind driven ventilation is simulated using computational fluid dynamics (CFD). Occ...

Stochastic versions of a classical model for natural ventilation are proposed and investigated to demonstrate the effect random fluctuations on stability predictability. In stochastic context, well-known deterministic result that driven by competing effects buoyancy wind admits multiple steady states can be misleading. With in exchanged with an external environment modelled as Wiener process, s...