2004 Volume 20 Pages 533-538
A method to control sediment transport by using DRIM has been examined through three dimensional movable bed experiments and numerical simulations. DRIM is short for the Distorted Ripple Mat', the surface profile of which is of distorted sinusoidal curve, and can control sediment transport in one direction under waves. The effective layout of DRIM installation is examined through movable bed experiments. In addition, the numerical model is improved to reproduce the phenomenon observed in the experiments. As the result of the examinations, it is confirmed that the layout of DRIM where the additional unit (called offshore-tail) is attached is quite effective to increase the effect of controlling sediment transport.
