In the present work, the tidal stream energy resource in Langyatai (LYT) strait was calculated based on tidal current velocity. To obtain the tidal current velocity, a tidal current numerical model was setup and validated by measurements of tidal current in 2 points around LYT strait with observing period of 25 hours in spring tide. The calculated tidal current velocities agree well with the measured velocities, which shows the reliability of the model. The characteristics of tidal currents around LYT were analyzed and the following tidal stream energy density was calculated: The velocity category interval containing maximum energy potential for LYT strait is 1.5∼1.6m/s and the power for the entire section of the strait is 1.927 MW.
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