Multi-thread parallel algorithm for reconstructing 3D large-scale porous structures

摘要: Abstract Geomaterials inherently contain many discontinuous, multi-scale, geometrically irregular pores, forming a complex porous structure that governs their mechanical and transport properties. The development of an efficient reconstruction method for representing structures can significantly contribute toward providing better understanding the governing effects on properties materials. In order to improve efficiency reconstructing large-scale structures, multi-thread parallel scheme was incorporated into simulated annealing method. method, four correlation functions, which include two-point probability function, linear-path functions pore phase solid phase, fractal system function were employed reproduction well-connected structures. addition, random sphere packing self-developed pre-conditioning cast initial reconstructed model select independent interchanging pairs calculation, respectively. accuracy proposed algorithm evaluated by examining similarity between prototype in terms geometrical, topological, Comparisons models with various scales indicated shortened execution time compared sequential single-thread procedure.