Questions about flow velocity in open-channel water pipes
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A complete beginner asking for advice. When calculating the flow rate for ordinary water pipes at 0.3 MPa, a flow velocity of 1.2 to 1.5 m/s is commonly used. But what if the discharge outlet is open? Should it be calculated in the same way as the flow velocity inside the pipe? It should increase, I guess. Is there any formula that applies?
Using Bernoulli’s equation, the formula is universal!