Table 14.4.

Comparison between the experimental and the calculated velocity decay rates

换气次数 (次/h)	Number of air suppliers (0.5 m × 0.5 m)	Air velocity on the outlet surface (2.46 m) (m/s)	Air velocity on the working surface (0.8 m) (m/s)	Measured decay rate of velocity	Calculated decay rate with Eq. (14.1)	Average decay rate
						Test	Simulated flow field	With Eq. (14.1)
15	1	0.54	0.32	0.41	0.61	0.43	0.48	0.53
	2	0.27	0.15	0.44	0.46
25	1	1.02	0.55	0.46	0.61	0.45	0.44	0.4
	2	0.50	0.28	0.44	0.46
	3	0.34	0.20	0.41	0.41
	4	0.25	0.13	0.48	0.38