Flow and Topography Change around Shiogama at the northern zone of Ushi Shima

Abstract

The numerical analysis by LES was carried out for the current and topography change around the Shiogama(namely the deepest region) near Ushi Shima. The flow accelerates and diverges radially during the eastward current and converges during the westward current near the top of slope around Shiogama. The anticlockwise vortex is formed at the eastern zone of Ushi shima and this accords with the measured results. As the result, the bottom is accreted at the eastward zone of Ushi Shima.