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Browsing by Subject "local volume fraction"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Numeryczne określanie parametrów efektywnych transportu na podstawie cyfrowych obrazów mikrostruktury
    (Wydawnictwa AGH, 2010) Różański, Adrian; Łydżba, Dariusz; Sobótka, Maciej
    In this work computationally efficient method of effective transport properties determination is proposed. The methodology is applied to digital images of random microstructures. It is shown that effective properties can be evaluated as mean values averaged over sufficient number of samples. The sample is assumed to be a finite-sized region which is a part of digital image. The condition regarding sample size, based on the variance of local volume fraction, is proposed. The variance is shown to be calculated on the basis of two-point probability function. Sample size criterion is verified for two different digital images of random microstructures.