Author(s): Zhaowu Meng; Satoshi Tohma; Katsutoshi Kimura; Makoto Miyatake
Linked Author(s):
Keywords: Tidal currents; Boundary-fitted model
Abstract: In order to compute tidal currents in a lake with a narrow tidal channel or boundary-complicated shoreline, a 2D horizontal boundary-fitted model is developed in combination with Alternating-Direction-Implicit method. The model¡ˉs utility is shown by the application to Lake Notoro, Hokkaido, Japan. Changes on tidal currents in Lake Notoro are reproduced based on the process of the construction of breakwaters. According to the velocities of computation results, the scour mechanism of channel bed can well be understood and further field surveys or countermeasures can be directed. As a result, this model can be applied to simulate the tidal currents in a boundary-complicated gulf with a narrow channel, and can provide useful suggestions on scour and sedimentation problems.
Year: 2001