Local Dynamic Similarity Model of Cross-Ventilation Part 2 - Application of Local Dynamic Similarity Model

External flow effects on the discharge coefficients of two types of ventilation opening

“…There have been several wind tunnel investigations of simple buildings with two openings that show C z varying with wind direction (e.g. Kurabuchi et al, 2004;Ohba et al, 2004;Shoda, 1950;Etheridge and Nolan, 1979;Carey and Etheridge, 1999;Sawachi, 2002). Typically the maximum values observed were somewhat greater than the still-air value and the minimum values were much less.…”

A perspective on fifty years of natural ventilation research

“…The validity of this, for inward flow, can be seen in model-scale tests in wind tunnels and full-scale tests in the laboratory, [22], [23] and E3.4.…”

“…For example, crosssflow ventilation by the wind is encouraged in the design of Japanese dwellings, [23], [32].…”

“…The effect of the wind can be determined by comparison with the value with no wind. There are two basic techniques; one which reproduces the full-scale technique that uses a fan or similar device to generate a known flow rate, [74] and [23]; the other [75] uses the hot-wire in a chimney opening referred to above.…”

Impact of windward inlet-opening positions on fluctuation characteristics of wind-driven natural cross ventilation in an isolated house using LES

“…Reynolds Averaged Navier-Stokes (RANS) is frequently used in turbulence modelling [8,[12][13][14][15][16][17][18][19][20][21][22]. This approach may provide appropriate cross-ventilation flow characteristics with a relatively economical computational cost, but such models are less satisfactory in their description of turbulent features within and around buildings.…”