How to calculate flow velocity
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Use D = √(4*flow rate/3.14*V), where V is the flow velocity
This principle of chemical engineering should have been learned! It’s very simple! Using the equations QV = Qm/ρ and V = QV/A, we can derive that V = Qm/(ρ×A), where QV represents the volumetric flow rate, Qm the mass flow rate, ρ the density of the fluid, and A the cross-sectional area of the pipe. The flow velocity V can be calculated using the formula A = 3.14×D2/4. In summary, as long as we know Qm, ρ, and the pipe diameter D, it’s possible to calculate the flow velocity.
You can consult the chemical process design manual, which contains information on the flow rates of common fluids