Table 1.

Ventilation rate of wind-driven single-sided natural ventilation

	Ventilation rate, Qss (m3/s)	Remarks
Empirical method [25]	2.20×10−3	Qss=0.025AU, U is the wind velocity at the height of 125 mm (opening height)
	1.73×10−3	Qss=0.025AU, U is the wind velocity at the height of 62.5 mm (half of the opening height)
Integration of velocity from LES [23]	2.70×10−3	$Q_{\mathrm{ss}}=0.5{\mathit{\int }}_0^A|U_x|\mathrm{d}A$
Tracer gas step-down method (present study)	1.88×10−3
		$\frac{Q_{\mathrm{ss}}}{V}=\ln \left(\frac{C_0}{C_{\tau }}\right)\times \frac{1}{\tau }$