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Table 1

Air pocket volumes and lengths of flow profiles

Volume of air (m3)Length of the air pocket profiles (m)Length of the air pocket profiles (m)Absolute pressure inWater
Equation (43)Profile upstreamProfile downstreamthe air pocket (kPa)depth y(m)β (–)α (%)
Qw = 0.02 (m3/s) 
 0.0331 0.564 0.503 138.7 0.043 0.106 9.6 
 0.0387 0.564 0.682 139.2 0.039 0.124 11.1 
 0.0468 0.564 0.942 139.9 0.036 0.147 12.8 
Qw = 0.025 (m3/s) 
 0.0306 0.441 0.574 139.1 0.048 0.106 9.7 
 0.0368 0.441 0.778 139.8 0.044 0.125 11.1 
 0.0460 0.441 1.072 140.2 0.041 0.148 12.9 
Qw = 0.03 (m3/s) 
 0.0360 0.294 0.868 139.7 0.049 0.126 11.2 
 0.0462 0.294 1.196 140.1 0.045 0.148 12.9 
 0.0616 0.294 1.694 140.9 0.041 0.177 15.0 
Qw = 0.035 (m3/s) 
 0.0285 0.209 0.711 139.3 0.058 0.109 9.8 
 0.0362 0.209 0.962 139.3 0.054 0.127 11.3 
 0.0474 0.209 1.324 140.7 0.049 0.150 13.1 
Volume of air (m3)Length of the air pocket profiles (m)Length of the air pocket profiles (m)Absolute pressure inWater
Equation (43)Profile upstreamProfile downstreamthe air pocket (kPa)depth y(m)β (–)α (%)
Qw = 0.02 (m3/s) 
 0.0331 0.564 0.503 138.7 0.043 0.106 9.6 
 0.0387 0.564 0.682 139.2 0.039 0.124 11.1 
 0.0468 0.564 0.942 139.9 0.036 0.147 12.8 
Qw = 0.025 (m3/s) 
 0.0306 0.441 0.574 139.1 0.048 0.106 9.7 
 0.0368 0.441 0.778 139.8 0.044 0.125 11.1 
 0.0460 0.441 1.072 140.2 0.041 0.148 12.9 
Qw = 0.03 (m3/s) 
 0.0360 0.294 0.868 139.7 0.049 0.126 11.2 
 0.0462 0.294 1.196 140.1 0.045 0.148 12.9 
 0.0616 0.294 1.694 140.9 0.041 0.177 15.0 
Qw = 0.035 (m3/s) 
 0.0285 0.209 0.711 139.3 0.058 0.109 9.8 
 0.0362 0.209 0.962 139.3 0.054 0.127 11.3 
 0.0474 0.209 1.324 140.7 0.049 0.150 13.1 
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