Hydrodynamic characteristics of water flow in area of lower pool junction of spillway structures

Khidirov, Sanatjon; Artikbekova, Fotima; Azimov, Azam; Yulchiev, D

doi:10.1051/e3sconf/202336503037

Cited by 2 publications

(1 citation statement)

References 13 publications

(6 reference statements)

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“…The hydrodynamic characteristic in the considered zone of the water flow is one of the main factors affecting the strength, reliability, and stability of the downstream elements of the structure [1][2][3][4][5][6] In the experimental studies, energy absorbers in the form of short walls were chosen to mitigate the energy of flow, as shown in the diagram in Fig. 1 [7][8][9]. An analysis of the currently existing methods for hydraulic calculation of energy absorbers shows that their reactive effect on the flow is expressed as the main factor in calculating the energy of absorbers.…”

Section: Introductionmentioning

confidence: 99%

Effect of flow velocity on downstream energy absorbers and velocity coefficient

Khidirov,

Artikbekova,

Azimov

et al. 2023

E3S Web of Conf.

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As a result of designing an energy absorber in the zone of conjugation of water outlet structures of low-pressure and mediumpressure reservoirs, the stilling basin is not only under the influence of vertical hydrodynamic pressure with a variable value but also the disappearance of stagnation of the stilling basin can also be affected by the hydrodynamic stress arising from the force of horizontal pressure in the energy absorber. The hydraulic jump in the pool junction zone is one of the simplest energy absorbers. To increase the efficiency of this process, it is necessary to improve the hydraulic regime downstream of the water outlet, reshape the interface mode in the stilling basin and on the apron surface, and eliminate flow disturbance, through the construction of special energy absorbers in the stilling basin. These structures exert reactive (accelerating implementation), dislocation (accommodating), and distributed forces on the flow.

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Section: Introductionmentioning

confidence: 99%

Effect of flow velocity on downstream energy absorbers and velocity coefficient

Khidirov,

Artikbekova,

Azimov

et al. 2023

E3S Web of Conf.

Self Cite

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show abstract

Calculation of strength of stilling basins and pressure in downstream water outlet structures

Khidirov,

Artikbekova,

Begmatov

et al. 2023

E3S Web of Conf.

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Calculations performed to determine the strength of the stilling basin and apron of the downstream zone should mainly be carried out, considering the conditions of their stability and strength. When calculating the elements of the fastening zone for strength and stability, it is advisable to consider vertical and moment hydrodynamic stresses. Conducting targeted research on developing scientific methods for calculating the interface between the spillway and downstream outlet structures, mitigating kinetic energy in the downstream toe, choosing designs for protecting downstream of the structure, and determining hydrodynamic loads is particularly important. In this regard, one of the important tasks is to conduct scientific research on improving the design of the downstream toe, working out methods for determining hydrodynamic loads while calculating the thickness of the stilling basin and apron, which ensures the strength of the downstream toe.

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Hydrodynamic characteristics of water flow in area of lower pool junction of spillway structures

Cited by 2 publications

References 13 publications

Effect of flow velocity on downstream energy absorbers and velocity coefficient

Effect of flow velocity on downstream energy absorbers and velocity coefficient

Calculation of strength of stilling basins and pressure in downstream water outlet structures

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