Vertical velocity distribution in open channels with moveable bottom under the influence of wind

Water motion in lower courses of large rivers is generated by series of different factors, including also wind. Hitherto existing solutions of wind influence on vertical velocity distribution were obtained by assuming a fixed bottom. However, series of field measurements indicate that the problem of the moveable bottom should not be neglected. Under conditions of acting wind, high velocities are generated close to the bottom. They create so-called slip velocity at the border between mediums, which has an important impact on changes in bottom position. An attempt to solve this problem has been presented in this article.