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thread124-156148 with reference

thread124-156148 with reference

thread124-156148 with reference

(OP)
thread124-156148: vortex at the tank outlet

with reference to the above thread. I want to dicuss some things about vortex breaker device installed at the outlet. I want to add this device on outlet of a tank which is 200mm. I wanted to know that is there a thumb rule for device height; while device vanes are usually mentioned as 2/3 of the outlet diameter, how much should be the height of the vanes (or baffles)? The mass flow rate through this drain is 130 kg/s and the density is 780 kg/m3. Based on the formula (S = D +2.3 D Fr), this gives the submereged depth of 1.9 m. The tank height is 5 m. Isnt it too much height for a vortex device compared to tank height?

Please help

Shamoon

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