Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)
- Volume 20 Issue 9
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- Pages.3015-3029
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- 1996
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- 1226-4881(pISSN)
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- 2288-5324(eISSN)
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Fluctuation of Transport Properties of Random Heterogeneous Media
비정형 혼합재 이동성질의 변동
- Kim, In-Chan (Faculty of Mechanical Engineering, Kunsan National University)
- 김인찬 (군산대학교 기계공학부)
- Published : 1996.09.01
Abstract
The notion of effective transport property of a heterogeneous medium implies that the medium is large enough that the ergodic theorem holds and local fluctuation of the property can be neglected. In case that the medium is not large enough compared to its characteristic microstructure length scale, the effective property fluctuates and differs from the value of the medium being large enough. As a representative transport phenomenon, diffusion was considered and the fluctuation of varying effective diffusion property, diffusion coarseness
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