References
- Proc. XXXVIIth IAHR Cong. S. GUG;Komatsu. T;Yano. S;Kohashi. N
- Proc. XXXVIIth IAHR Cong. v.3 Awaya. Y;Komatsu. T;Kawasaki. S;Asai. K;Fujita. K
In order to improve the water quality in semi-enclosed bays, Gug et al. (1997) have proposed a new method to activate the tidal exchange by creation and control of tidal residual current through the addition of artificial elements to creation and control of tidal residual current through the addition of artificial elements to create bottom roughness, so, ot is advisable to arrange as few of these as possible from a point of cost-benefit view. This paper attempts to develop the most suitable shape of artificial bottom roughness units with which to create and control an optimal tidal residual current. Several simple shapes were examined as fundamental cases. Subsequently 38 types of artificial bottom roughness units based on a few simple effective shapes, were examined experimentally. As a result of this research, two types to create artificial roughness.