Investigation of the impact of armor dike simple shape of the hydraulic flow river and intake flow rate to help physical mode

Document Type : Research Paper

Authors

Department of Water Science and Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran

10.22075/ijnaa.2023.31018.4544

Abstract

In this research, to investigate the simple breakwater upstream and downstream of the catchment, on the diversion discharge of the catchment with deviation angles of 30, 45, 60 and 90 degrees for five inlet discharges (0.7, 1.12, 2.82, 04 / 5 and 23.6 liters per second in a laboratory flume as a mold model, which the results of the tests show, a simple breakwater in the upstream and downstream of the catchment causes an increase of 5.5% in the discharge of the catchment and the best The angle of deviation of the catchment is 60 degrees with a 25.4% increase in the relative discharge compared to the angle of deviation of 90 degrees. Catchers with a deviation angle of 60 degrees, due to the catchment being aligned with the incoming flow and using the full capacity of the catchment head, They have the highest deviation flow rate. And in another study by the above authors to investigate the effect of arc convergence on the angle of the catchment in a model of a 90 degree converging arc (that is, the width of the channel is uniformly reduced), it was determined that the hydraulic conditions are suitable, i.e., the percentage of water intake discharge and minimum sediment entering the catchment. At the angle of 45 degrees, which is the reason for the difference obtained due to the convergence of the arc in this study, and in contrast to the angle of 90 degrees, because at this angle, the flow must make a sharp turn to enter the head of the intake opening, the steepest and most inappropriate angle of intake deviation is.

Keywords


Articles in Press, Accepted Manuscript
Available Online from 17 July 2023
  • Receive Date: 13 March 2023
  • Revise Date: 22 June 2023
  • Accept Date: 17 July 2023