Water flow motion in the vehicle of main channels

Abstract

The article considers a numerical study of the movement of water flow in the Amu-Bukhara Machine Channel (ABMCh-Bukhara region). Water intake to the inlet channel is carried out from one of the most muddy rivers in Central Asia in a damless manner, therefore, ensuring the flow of clarified water into the anterior chambers of pumping stations is an urgent task. A numerical study is a study of the hydrodynamic parameters of the flow and, based on the data obtained, the developed recommendation is the aim of this work. The determination of the main hydraulic parameters of the flow moving in the riverbed by numerical research is accepted as a research method. According to the developed model, consisting of hydrodynamic equations, based on the law of conservation of momentum and mass, data on the dynamics of velocities of the ABMCh supply channel are obtained and zones of uneven flow in the channel are determined. A recommendation has been developed that allows quasi-uniform movement, which helps to prevent the formation of deformation of the supply channel of the pumping station and the entry of suspended and bottom sediments into the chamber of the pumping station.

Hydraulic resistances experimental and field studies of supply canals and pumping stations structures

“…At the same time, the geometric dimensions of the experimental canal were recalculated based on the parameters of a real object, taking into account the scale of modeling. Based on experimental studies of the distribution of vertical velocities of the water flow, as well as field data of machine canals ABMС (water consumption in ABMC -1 = 75 3/ and ABMC-2 is = 150 3/ ) in nature, the water speed on the machine canal is quite high and is equal to (=3÷4,5 m/s), the obtained materials of experimental and natural conditions gave similar results [30][31].…”

Consideration of climatic factors in the operating mode of hydraulic facilities in the Amudarya river basin

“…The Amu Darya basin, the largest river basin in Central Asia in terms of a catchment area, covers an area of 1,326,000 km 2 , of which 1,017,835 km 2 falls on the territory of the Commonwealth of Independent States (CIS) countries, which are hydrographically related to the large Amu Darya basin. The catchment boundaries of the basin are clearly identified within the mountainous region: in the south, they pass along the Hindu Kush ridge, in the east -along the Sarykol ridge, and in the north -along the Alay, Turkestan, and Nurata ridges [20][21][22][23]. A large area occupied by glaciers and snowfields determines the nature of the feeding of the largest rivers in the basin, most of which belong to the rivers of glaciersnow feeding (Amu Darya, Pyanj, Vakhsh, Zeravshan, and some others).…”

Achieving reliability and energy savings in operate of pumping stations

“…To improve the safety and sustainable operation of РS, it is recommended to: develop regulatory documents that determine the properties of water, which do not lead to wear of equipment and destruction of materials; a methodology for a comprehensive assessment of the degree of risk from the impact of a resource of inappropriate quality during the operation of the РS [26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43].…”