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Constrained weak identification of Allen--Cahn free energies with surface-tension calibration

Jung, Soobeen et al.
arXiv (All) · Papers
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35r30and-sciencecomputational-engineeringcomputational-physicsfinanceg-1-6g-1-8numerical-analysis
Phase-field trajectories governed by the Allen--Cahn equation determine the effective force $G=F'/\eps^2$, but not the free-energy potential $F$ and interfacial scale $\eps$ separately. We introduce surface-tension-calibrated Allen--Cahn identification (STAC), a two-step method that resolves this am
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