Hec-Ras Using for Hydrologic Regime Modeling on the Don’s Delta

Sheverdyaev, I.V.; Berdnikov, S. V.; Kleschenkov, A.V.

doi:10.23885/2500-395x-2017-1-2-113-122

Cited by 2 publications

(2 citation statements)

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“…In [4], HEC-RAS was used in hydrological processes modeling in the Don's delta, as well as digital terrain model (DTM), which is created by combining Japan DTM, topographic maps and channel data of the united navigable deep-water system of the European part of Russia. The authors carried out calculations of the flow distribution in the delta channels, periods of water changes in the canals and modeling of floods using a wind surge.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…Modeling of river systems and reservoirs seems to be the most difficult. As positive examples of constructing multidimensional models for such objects, we point to the lower course of the Bureya River behind the Bureyskaya HPS [1], the Danube Delta [2], the Kuibyshev reservoir [3], the Don estuary area [4], the middle course of the river Don [5], the Medveditsa River [6].…”

Section: Introductionmentioning

confidence: 99%

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Development of an algorithm for calculating stable solutions of the Saint-Venant equation using an upwind implicit difference scheme

Aloev

Akbarova

Baishemirov

2021

EEJET

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The problem of numerical determination of Lyapunov-stable (exponential stability) solutions of the Saint-Venant equations system has remained open until now. The authors of this paper previously proposed an implicit upwind difference splitting scheme, but its practical applicability was not indicated there. In this paper, the problem is solved successfully, namely, an algorithm for calculating Lyapunov-stable solutions of the Saint-Venant equations system is developed and implemented using an upwind implicit difference splitting scheme on the example of the Big Almaty Canal (hereinafter BAC). As a result of the proposed algorithm application, it was established that: 1) we were able to perform a computational calculation of the numerical determination problem of the water level and velocity on a part of the BAC (10,000 meters) located in the Almaty region; 2) the numerical values of the water level height and horizontal velocity are consistent with the actual measurements of the parameters of the water flow in the BAC; 3) the proposed computational algorithm is stable; 4) the numerical stationary solution of the system of Saint-Venant equations on the example of the BAC is Lyapunov-stable (exponentially stable); 5) the obtained results (according to the BAC) show the efficiency of the developed algorithm based on an implicit upwind difference scheme according to the calculated time. Since we managed to increase the values of the difference grid time step up to 0.8 for calculating the numerical solution according to the proposed implicit scheme.

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%