Abstract
Swirling flow often accelerates FAC(Flow accelerated corrosion) that is one of pipe wall thinning.Parameters of FAC can be evaluated by the mass transfer rate. In previous studies,we confirmed that the maximum value of mass tranfer rate is increased by swirling flow. But we do not clearly understand the relationship between mass taransfer rate and flow field. In this study, we simultaneously measure taransfer rate and velocity, and then caluculate space-time correlation. When the swirling flow goes into the orifice, we observe that large correlation occures not only in u and v but also in V? component.
