# Valve flow-coefficient screening
# Scope: Incompressible valve orifice approximation; not pneumatic Cv sizing.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

area = 1 mm^2
difference = 100 kPa
density = 1000 kg/m^3
coefficient = 0.7

flow := coefficient*area*sqrt(2*difference/density) [L/min]

check flow target: flow >= 0.5 L/min

scenario alternative: area = 0.8 mm^2