Mass transfer can be enhanced by flow oscillation. Your goal in this study is to review the literature and, in particular, examine the following model problem, viz., mass transfer in pipe flow with a dissolving wall. Assume that the flow oscillation is caused by a sinusoidal variation of the inlet pressure. Perform a scaling analysis based on the key time constants to find conditions under which the enhancement is likely and also investigate the problem using numerical tools. How does the time-average Sherwood number vary with the dimensionless amplitude of oscillation?