Evaluation of effect of the wind pressure fluctuation for cross ventilation in the residential district

In residential district, it is difficult to setappropriate wind pressure coefficient for crossventilation design, because there are various andcomplex parameters that influence the windpressure. A simpler method to identify the windpressure coefficient is needed in general designprocess of the cross-ventilated space.In this paper, wind tunnel experiment withthe models in some residential district wasconducted, and the difference of wind pressurecoefficient (AC,) between two openings on thesupposed flow path is analyzed to evaluate thepotential for cross ventilation. And the influenceof the building coverage on AC,, and 'effective'ACp that reflect the wind pressure fluctuationare discussed.