Multiscale sulfate attack on sewer pipes: Numerical study of a fast micro-macro mass transfer limit
نویسندگان
چکیده
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 the macroscopic Biot number Bi connects the two reactiondiffusion scenarios. We indicate connections between the solution of the ”regularized” system (with moderate size of Bi ) and the solution to the ”matched” system (with blowing up size of Bi ), where Henry’s law plays the role of the micro-macro transmission condition.
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