Abstract
FAC (flow accelerated corrosion) is a phenomenon that accelerates the wall thinning rate in the flow. Mass transfer coefficient k is one of the important parameters to evaluate pipe wall thinning rate. We measure mass transfer coefficient by electrochemical technique and flow field using stereo PIV in order to observe the relationship between wall thinning and flow field. Based on the previous studies, we can expect that not only flow in the inner layer but also flow in the outer layer affects the mass transfer from the wall surface. Then, we calculate the correlation coefficient of amplitude modulation to observe interaction of inner and outer layer in this study.
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