流体力学セミナー流体力学セミナー

流体力学セミナー ２００９

日時： 7月16日（木） 13:30 から 15:00

場所： 京大 理 物理学教室 (理学研究科 5号館) ４１３号室

講師： Stuart Coleman 氏 (Imperial Colledge, London)
　　　
題目: Transport Properties of Saturated and Unsaturated
Porous Fractal Materials

概要： Inviscid, irrotational flow through fractal porous materials is
studied. The key parameter is the variation of tortuosity with the
filling fraction of fluid in the porous material. Altering the filling
fraction provides a way of probing the effect of the fractal structure
over all its length scales. The variation of tortuosity with filling
fraction is found to follow a power law for deterministic and
stochastic fractals in two and three dimensions. A phenomenological
argument for this scaling of tortuosity with filling fraction phi is
presented. Numerically calculated values of the exponents show good
agreement with those predicted from the phenomenological argument for
both the saturated and the unsaturated model.

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世話人：山田 道夫(京大数理研)， 藤 定義(京大)，松本 剛(京大理)
アドバイザー：船越 満明（京大情報学）、水島 二郎(同志社大工)、
余田 成男（京大理）
連絡先：山田道夫 yamada＠kurims.kyoto-u.ac.jp
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