انجمن هیدرولیک ایران نشریه علمی هیدرولیک 2345-4237 6 1 2011 05 22 The Effect of Flow Diversion on Sediment Entering Intake Located at Section 52o in Sinuous Rivers تاثیر انحراف جریان بر رسوب ورودی به آبگیر با زاویه انحراف 52 درجه در رودخانه سینوسی 41 52 85503 10.30482/jhyd.2011.85503 FA منصور ابوالقاسمی مسعود قدسیان حمید سنگین آبادی Journal Article 2011 03 23 The outer bank in meandering rivers is suitable place for flow diversion. Flow diversion from the outer<br />bank of channel lead to formation of a transverse flow component having an opposite alignment with<br />the secondary current in bed and consequently transferring a part of the sediment bed load to intake.<br />The diversion of flow will change the flow pattern in the river bend and decrease the energy of the<br />secondary current in this location. In this paper the effect of flow diversion to sediment entering the<br />intake in a 52 degree diversion angle was investigated. The results have shown that the low ratios of<br />diverted flow has a little effect on the secondary current, and also this current causes the repelling of<br />sediments from the outer bend of the river. Along with the increase of the ratio of diverted flow, the<br />energy of secondary currents decrease and the ratio of sediment diversion increases. In a specific value<br />of flow diversion, the secondary flow was fully damped. After that, the sediments entering the intake<br />have a higher increase compared to the previous situation. The results also showed that the trend of<br />variations of diverted sediments with the flow diversion generally follows the S shape. https://jhyd.iha.ir/article_85503_a6451f7e160584f8f3d981f17b8ed1ca.pdf