Current velocity field in section of Sai Gon river during operation of flood control structures

The largest economic center in Vietnam - Ho Chi Minh City, is facing increasingly serious riverbank erosion, one of the main reasons being flow. Therefore, this study, flow velocity field on Saigon River section accurately analyzed different time intervals with help MIKE 11 and 21 models. simulation results show that number velocities middle river 3-4 times greater than two banks. However, between high tide low tide, both sides faster flow, especially upper part winding banks, such as from Ben Nghe sluice to Tan Thuan, sewer An Loi Dong Ward police station Thu Thiem Bridge 2. value studied section, most cases, exceeds allowable non-erosion bed material particles. , riverbanks, well suspended sediment erosion process will occur regularly continuously, so urgent measures are needed protect riverbank. During operation anti-flood sluice, decrease slightly before sluices also appear whirlpools. has a complex distribution changes depending flood discharge Dau Tieng Lake tidal currents East Sea.