Jurin's law - Alchetron, The Free Social Encyclopedia

Jurin's law describes the rise and fall of a liquid within a thin capillary tube. Named after its discoverer James Jurin.

This law is expressed as:

h = 2 γ cos ⁡ θ r ρ g

where

h is the liquid height ;

γ is surface tension ;

θ is the contact angle of the liquid on the tube wall ;

ρ is the liquid density ;

r is the tube radius ;

g is the gravitational acceleration.

This law is valid if the tube radius is smaller than the capillary length.

References

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