3D Microstructure Modeling of Porous Metal Filters

Metals

Vladimír Hejtmánek¹ 

[1] Department of Catalysis and Reaction Engineering, Institute of Chemical Process Fundamentals, Academy of Sciences of the Czech Republic, Rozvojová 135, Prague CZ 16502, Czech Republic

关键词: porous metal filter;    stochastic reconstruction;    microstructural descriptors;    simulated annealing;    pore connectivity;    viscous flow;    knudsen flow;   

DOI  :  10.3390/met2030344

来源: mdpi

【 摘 要 】

The contribution presents a modified method of stochastic reconstruction of two porous stainless-steel filters. The description of their microstructures was based on a combination of the two-point probability function for the void phase and the lineal-path functions for the void and solid phases. The method of stochastic reconstruction based on simulated annealing was capable of reproducing good connectivity of both phases, which was confirmed by calculating descriptors of the local porosity theory. Theoretical values of permeability were compared with their experimental counterparts measured by means of quasi-stationary permeation of four inert gases.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.