Abstract
The characteristics of local scour and embedment of Artificial Fish Reef (AFR) by wave action are investigated experimentally, and the mechanism of embedment is discussed. With selected models of AFR, the experiment was conducted in a twodimensional wave tank. The vortex patterns near the angled part of AFR are also observed by the hydrogen-bubble method. The patterns of scour, the maximum scour depth, the embeded volume and the bottom-contact area of AFR model are revealed to be controled by KC number and shape of AFR on the movable bed.