# Capillary rise and surface tension
# Scope: Capillary rise in a circular tube, equilibrium contact angle supplied.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

tension = 0.072 N/m
radius = 0.5 mm
angle = 0 deg
density = 1000 kg/m^3
gravity = 9.81 m/s^2

rise := 2*tension*cos(angle)/(density*gravity*radius) [mm]

check rise budget: rise <= 50 mm

scenario alternative: tension = 0.0576 N/m