This article presents GRFsaw, an open-source software for generating two-phase (binary) microstructures with user-defined structural properties. Unlike most standard software for microstructure generation, GRFsaw is based on the concept of thresholding Gaussian random fields (GRF). It is designed to be used by researchers or engineers in need of a lightweight tool to generate microstructures of various geometries, for example as input to simulations or to other models where such geometries are needed. This could be simulations of fluid flow through porous media, in predictive models of electromagnetic scattering by materials, or in mechanical loading simulations in order to assess, e.g., the material's elasticity or strength.

翻译：本文介绍GRFsaw，一款用于生成具有用户定义结构特性的两相（二元）微结构的开源软件。与大多数标准微结构生成软件不同，GRFsaw基于高斯随机场（GRF）阈值化原理构建。该工具专为需要轻量级微结构生成功能的研究人员或工程师设计，可用于生成各种几何形态的微结构，例如作为仿真模拟或其他需要此类几何结构的模型的输入数据。其应用场景包括多孔介质流体流动模拟、材料电磁散射预测模型，或用于评估材料弹性/强度等性能的机械载荷模拟。