Correlation Function Analysis of Fiber Networks: Implications for Thermal Conductivity

[摘要] The heat transport in highly porous fiber structures is investigated. The fibers are supposed to be thin, but long, so that the number of the inter-fiber connections along each fiber is large. We show that the effective conductivity of such structures can be found from the correlation length of the two-point correlation function of the local conductivities. Estimation of the parameters, determining the conductivity, from the 2D images of the structures is analyzed.

[发布日期] 2011-01-01

[学科分类] 复合材料