Experimental and Theoretical Study of Internal Pressure Loads on Boundary Walls under Gusty Wind Conditions

Table 5

Negative pressure jumps. Values of the total pressure loss coefficient, , and flow coefficient, , as a function of the nominal gust frequency, , and vent hole radius , 11, and 12.5 mm; reservoir volume , 0.011 m³, 0.0062 m³, 0.0033 m³, and 0.0016 m³.

(mm)	9.00		11.00		12.50
(Hz)
2.4	12.9	0.24	16.5	0.24	17.2	0.24
4.0	5.0	0.35	7.1	0.35	8.0	0.35
6.0	1.9	0.50	3.4	0.50	4.1	0.50
7.7	1.4	0.51	2.7	0.51	3.8	0.51
2.4	29.4	0.24	38.6	0.24	51.2	0.14
4.0	12.3	0.35	15.1	0.35	23.4	0.21
6.0	6.1	0.50	8.7	0.50	15.8	0.25
7.7	5.0	0.51	8.6	0.51	12.4	0.28
2.4	54.7	0.24	76.0	0.24	112.4	0.09
4.0	25.8	0.35	36.8	0.35	45.2	0.15
6.0	15.4	0.50	28.5	0.50	26.1	0.20
7.7	13.1	0.51	20.3	0.51	24.7	0.20
2.4	254.4	0.24	273.9	0.24	365.5	0.05
4.0	97.4	0.35	118.2	0.35	163.9	0.08
6.0	46.5	0.50	49.7	0.50	66.1	0.12
7.7	38.2	0.51	44.0	0.51	56.7	0.13
2.4	3559	0.24	7483	0.24	11131	0.01
4.0	1014	0.35	2723	0.35	10032	0.01
6.0	376	0.50	950	0.50	1319	0.03
7.7	287	0.51	639	0.51	907	0.03