Multiscale sulfate attack on sewer pipes : numerical study of a fast micro-macro mass transfer limit

V. Chalupecky, T. Fatima, A. Muntean

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Abstract

We present two multiscale reaction-diffusion (RD) systems modeling sulfate attack in concrete structures (here: sewer pipes). The systems are posed on two different spatially separated scales. The only difference between them is the choice of the micro-macro transmission condition. We explore numerically the way in which the macroscopic Biot number $Bi^M$ connects the two reaction-diffusion scenarios. We indicate connections between the solution of the "regularized" system (with moderate size of $Bi^M$) and the solution to the "matched" system (with blowing up size of $Bi^M$), where Henry’s law plays the role of the micro-macro transmission condition.
Original languageEnglish
Pages (from-to)171-181
JournalJournal of Math-for-Industry
Volume2
Issue number2010B-7
Publication statusPublished - 2010

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