title: Computational high-throughput screening of fluid permeability in heterogeneous fiber materials.
abstract: We explore computational high-throughput screening as a design strategy for heterogeneous, isotropic fiber materials. Fluid permeability, a key property in the design of soft porous materials, is systematically studied using a multi-scale lattice Boltzmann framework. After characterizing microscopic permeability as a function of solid volume fraction in the microstructure, we perform high-throughput computational screening of in excess of 35 000 macrostructures consisting of a continuous bulk interrupted by spherical/elliptical domains with either lower or higher microscopic permeability (hence with two distinct microscopic solid volume fractions and therefore two distinct microscopic permeabilities) to assess which parameters determine macroscopic permeability for a fixed average solid volume fraction. We conclude that the fractions of bulk and domains and the distribution of solid volume fraction between them are the primary determinants of macroscopic permeability, and that a substantial increase in permeability compared to the corresponding homogenous material is attainable.
authors.affiliation: SP Food and Bioscience, Soft Materials Science, Göteborg, Sweden. magnus.roding@sp.se and VINN Excellence Center SuMo Biomaterials, Chalmers University of Technology, Göteborg, Sweden and School of Energy and Resources, UCL Australia, University College London, Adelaide, Australia.
authors.forename: Magnus
authors.initials: M
authors.lastname: Röding
authors.affiliation: SP Food and Bioscience, Soft Materials Science, Göteborg, Sweden. magnus.roding@sp.se and VINN Excellence Center SuMo Biomaterials, Chalmers University of Technology, Göteborg, Sweden.
authors.forename: Erich
authors.initials: E
authors.lastname: Schuster
authors.affiliation: SP Food and Bioscience, Soft Materials Science, Göteborg, Sweden. magnus.roding@sp.se and VINN Excellence Center SuMo Biomaterials, Chalmers University of Technology, Göteborg, Sweden.
authors.forename: Katarina
authors.initials: K
authors.lastname: Logg
authors.affiliation: VINN Excellence Center SuMo Biomaterials, Chalmers University of Technology, Göteborg, Sweden and SCA Hygiene Products, Göteborg, Sweden.
authors.forename: Malin
authors.initials: M
authors.lastname: Lundman
authors.affiliation: VINN Excellence Center SuMo Biomaterials, Chalmers University of Technology, Göteborg, Sweden and SCA Hygiene Products, Göteborg, Sweden.
authors.forename: Per
authors.initials: P
authors.lastname: Bergström
authors.affiliation: VINN Excellence Center SuMo Biomaterials, Chalmers University of Technology, Göteborg, Sweden and SCA Hygiene Products, Göteborg, Sweden.
authors.forename: Charlotta
authors.initials: C
authors.lastname: Hanson
authors.affiliation: VINN Excellence Center SuMo Biomaterials, Chalmers University of Technology, Göteborg, Sweden and Mathematical Sciences, Chalmers University of Technology, Göteborg, Sweden.
authors.forename: Tobias
authors.initials: T
authors.lastname: Gebäck
authors.affiliation: SP Food and Bioscience, Soft Materials Science, Göteborg, Sweden. magnus.roding@sp.se and VINN Excellence Center SuMo Biomaterials, Chalmers University of Technology, Göteborg, Sweden.
authors.forename: Niklas
authors.initials: N
authors.lastname: Lorén