Dynamics of unstable sound waves in a non-equilibrium medium at the nonlinear stage

Khrapov, S. S.; Хоперсков, А. В.

doi:10.1088/1742-6596/973/1/012007

Cited by 4 publications

(2 citation statements)

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“…Третьим этапом является гидродинамическое моделирование динамики затопления с учетом определенных ранее параметров расчета. Для моделирования мы используем программное обеспечение [8], в основе которого лежит численная схема CSPH -TVD (Combined Smooth Particle Hydrodynamics -Total Variation Diminishing) для интегрирования уравнений мелкой воды, описанная в работе [9]. Вычислительные эксперименты проводятся на GPU NVIDIA Tesla V100.…”

Section: методика расчета затопленияunclassified

“…Использование геоинформационного и гидродинамического моделирования позволяет получать более точные границы зон и карты затоплений с учетом всех основных физических, топографических, метеорологических, гидрологических и других факторов [9]. Результаты построения такого рода моделей содержат полную временную картину пространственных распределений воды на заданной территории, позволяя также рассчитывать площадь затопления, скорости потока, распределения глубин, характерные времена изменения основных характеристик гидрологического режима [5].…”

Section: Introductionunclassified

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Determination of the Boundaries of Flooded Zones Based on Hydrodynamic Modeling

Dyakonova

Krivko

Agafonnikova

et al. 2020

MPCS

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The paper discusses the problem of determining the boundaries of flooding zones, flooding of territories. The paper describes technique for constructing cadastral maps of flooded zones for various values of the estimated availability of water levels, which is based on hydrodynamic and geoinformation modeling. For creating digital elevation models (DEM) of the conformation, we use spatial data obtained from a large number of sources. We applied the described technique to construct cadastral maps for a number of settlements in the Volgograd region of the Russian Federation. As a result, we get a set of xml-files prepared for registration with the Federal Agency for State Registration, Cadastre and Cartography. For the Republic of Belarus, the problem of flooding the territories is also urgent. The floodplain areas of the Pripyat River are most prone to flooding. We built a DEM for the area in the vicinity of Petrikov city and carried out hydrodynamic modeling. As a result, the inundation maps were obtained. The method proposed in this work is based on a mathematical model of shallow water in a single-layer approximation. This model is successfully applied in simulation of flooding for territories by flood waters. Solving the problem of determining the boundaries of flooding zones requires a transition to a two-layer shallow water model that takes into account the interaction of surface and ground waters.

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Section: методика расчета затопленияunclassified

Section: Introductionunclassified