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Fig. 2 | Geothermal Energy

Fig. 2

From: Modeling fracture cementation processes in calcite limestone: a phase-field study

Fig. 2

a Symmetric and asymmetric projections of the rhombohedral calcite geometry. b Validation of interface energy anisotropy formulation corresponding to the asymmetric left-handed 2D projection. A spherical grain evolves to its equilibrium shape while retaining a constant volume. The final crystal shares a diffuse interface of finite width with the surrounding liquid. The shape and size of the crystal are defined by the isoline corresponding to \(\phi _{\text {grain}}=0.5\)

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