Phase Field Modeling of Crystal Growth Morphology

2007 ◽  
Author(s):  
Robert F. Sekerka
Keyword(s):  
Crystal Growth ◽  
Phase Field ◽  
Growth Morphology ◽  
Phase Field Modeling ◽  
Field Modeling

scholarly journals Supplemental Material: Wide-blocky veins explained by dependency of crystal growth rate on fracture surface type: Insights from phase-field modeling

2021 ◽  
Author(s):  
Liene Spruzeniece ◽  
et al.
Keyword(s):  
Growth Rate ◽  
Crystal Growth ◽  
Fracture Surface ◽  
Phase Field ◽  
Numerical Approach ◽  
Crystal Growth Rate ◽  
Phase Field Modeling ◽  
Surface Type ◽  
Field Modeling ◽  
Image Library

Analytical methods, description of numerical approach, image library of results, and video files of the 2-D and 3-D simulations.<br>

scholarly journals Wide-blocky veins explained by dependency of crystal growth rate on fracture surface type: Insights from phase-field modeling

Geology ◽  
2021 ◽  
Author(s):  
Liene Spruženiece ◽  
Michael Späth ◽  
Janos L. Urai ◽  
Estibalitz Ukar ◽  
Michael Selzer ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Fracture Surface ◽  
Phase Field ◽  
Fluid Transport ◽  
Permeability Evolution ◽  
Phase Field Modeling ◽  
Surface Type ◽  
Field Modeling ◽  
Calcite Veins ◽  
Fresh Fracture

Vein microstructures contain a wealth of information on coupled chemical and mechanical processes of fracturing, fluid transport, and crystal growth. Numerical simulations have been used for exploring the factors controlling the development of vein microstructures; however, they have not been quantitatively validated against natural veins. Here we combined phase-field modeling with microtextural analysis of previously unexplained wide-blocky calcite veins in natural limestone and of the fresh fracture surface in this limestone. Results show that the wide-blocky vein textures can only be reproduced if ~10%–20% of crystals grow faster than the rest. This fraction corresponds to the amount of transgranularly broken grains that were observed on the experimental fracture surfaces, which are dominantly intergranular. We hypothesize that transgranular fractures allow faster growth of vein minerals due to the lack of clay coatings and other nucleation discontinuities that are common along intergranular cracks. Our simulation results show remarkable similarity to the natural veins and reproduce the nonlinear relationship between vein crystal width and vein aperture. This allows accurate simulations of crystal growth processes and related permeability evolution in fractured rocks.

scholarly journals Supplemental Material: Wide-blocky veins explained by dependency of crystal growth rate on fracture surface type: Insights from phase-field modeling

2021 ◽  
Author(s):  
Liene Spruzeniece ◽  
et al.
Keyword(s):  
Growth Rate ◽  
Crystal Growth ◽  
Fracture Surface ◽  
Phase Field ◽  
Numerical Approach ◽  
Crystal Growth Rate ◽  
Phase Field Modeling ◽  
Surface Type ◽  
Field Modeling ◽  
Image Library

Analytical methods, description of numerical approach, image library of results, and video files of the 2-D and 3-D simulations.<br>

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