Study of new designs of spillway channels with artificial roughness

Abstract

The effective functioning of agriculture and, as a consequence, the solution of the food problem is impossible without the use of scientifically based measures for water supply for food production. The paper presents the ways of regulating the transporting capacity of the grade-control structures and their new designs. For comparison, the works of leading experts in this field of were considered. The basis of the methodological and theoretical studies were the studies by Kazakhstani and CIS scientists on the problems of improving and researching new designs of overflow channels with artificial roughness. To solve the set tasks, general scientific methods were used to study improved designs of spillway channels. The results of experimental studies of new designs of spillway channels with artificial roughness are given; theory, methods, research data, and new designs of interfacing structures obtained on the basis of the findings of experimental studies in the Training Center for the Safety of Hydraulic Structures at the Department of Water Resources of the Taraz State University named after M.Kh. Dulaty. Taking into account the experimental studies of the structure under consideration, recommendations are proposed for conducting experimental studies of the structures of spillway channels with artificial roughness. The main conclusions and practical recommendations can be used as a methodological basis for further study of spillway channels with artificial roughness. A method has been developed for determining the position, alignment of the beginning of energy extinguishing under the condition of a fast flow regime (at the transit part of the flow) at the end section of the flume with artificial roughness. The results of calculations by the proposed method show good compatibility with the data of field studies.