Calculation result
Enter values and select Calculate.
Educational planning arithmetic only. Enter your own measured values and properties; these results are not an engineering specification, safety decision, or equipment recommendation.
Formula and method
For this simplified incompressible model, Q = CdA√(2ΔP/ρ), where A is the entered area or πD²/4, ΔP is pressure difference, ρ is fluid density, and Cd is the user-entered discharge coefficient. The coefficient depends on geometry and flow conditions. See the Missouri S&T fluid-flow instrumentation reference.
Worked example
At Cd = 0.62, D = 0.02 m, ΔP = 10,000 Pa and density = 1000 kg/m³, the estimated flow is about 0.0008711 m³/s (0.8711 L/s).
Scope and limitations
This does not model compressible or choked flow, cavitation, two-phase flow, nonstandard edge geometry, varying Cd, upstream/downstream installation effects, or measurement uncertainty. It is not a safety-relief sizing tool or equipment specification.
Privacy and related tools
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