Pipeline calculation
Thread Content
Can the flow rate be calculated just by knowing the diameter and pressure of the pipe? How do I calculate it? Or how many parameters are minimum needed to calculate the flow rate?
Flow rate = velocity * cross-sectional area. Or calculate using the Bernoulli equation to establish an equilibrium equation. Bernoulli’s equation: p + ρgz + (1/2)*ρv^2 = C, where p, ρ, and v represent the pressure, density, and velocity of the fluid, respectively ； z is the vertical height ； g is the acceleration due to gravity. As for the known quantities required, you can see them from the equation, hehe
Be careful with the conditions for using Bernoulli's equation.
Reply to 1# win16888: I’m not sure if you work in design or what field; generally, once the diameter is determined, it’s possible to estimate the flow rate. In chemical engineering design, the flow rate should generally be determined first, and then the optimal pipe diameter is determined based on the system’s pressure drop. For rough estimation, flow rates can be selected from some manuals.