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Cahn–Hilliard equation
Description of phase separation
Cahn–Hilliard equation
The Cahn–Hilliard equation (after John W. Cahn and John E. Hilliard) is an equation of mathematical physics which describes the process of phase separation, spinodal decomposition, by which the two components of a binary fluid spontaneously separate and form domains pure in each component. If c {\displaystyle c} is the concentration of the fluid, with c = ± 1 {\displaystyle c=\pm 1} indicating both domains, then the equation is written as ∂ c ∂ t = D ∇ 2 ( c 3 − c − γ...
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