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The nearshore hydrodynamic fields are produced by the nonlinear interactions of the shoaling waves of different time scales and currents. To simulate the wind wave propagated to the coasts, wave generated nearshore currents, nonlinear-dispersive wave transformation and wave diffraction in interaction with coastal and port structure, sediment transport and coastal erosion, the chains of the models should be used. The objective of the paper is to provide an overview of the results of the application of the model chains for the assessment of the wave impacts on new port designed at the Ob lip, Kara Sea to demonstrate needs for further development of the nonlinear models for the coastal engineering applications. The open source models WaveWatch III and SWAN has been used to simulate wave statistics of the dedicated areas of the studied coastal areas in high resolution to calculate the statistical parameters of the extreme wave approaching coastal zone construction in accordance with coastal engineering standards.
Гидродинамические поля в береговой зоне образуются в результате нелинейного взаимодействия трансформирующихся волн различных временных масштабов и течений. Цепочку моделей необходимо использовать для моделирования ветровых волн, распространяющихся к берегу, волновых береговых течений, нелинейно-дисперсионной трансформации волн, дифракции волн при взаимодействии с береговыми и портовыми сооружениями, транспорта наносов и береговой эрозии. Цель статьи продемонстрировать обзор результатов применения цепочки моделей для определения волнового воздействия на сооружения проектируемого порта в Обской губе, Карское море, и обсуждения требований к дальнейшему развитию нелинейных моделей для применения в береговой гидротехнике. Модели открытого доступа WaveWatch III и SWAN используются для моделирования статистики волн в выделенных районах береговой зоны с высоким разрешением для определения статистики экстремальных волн, подходящих к береговым конструкциям, в соответствии с нормативами.
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Table of Contents
- Numerical modeling of nonlinear hydrodynamics of the coastal areas
- 1. Introduction
- 2. Methods
- The boundary conditions when performing mathematical modeling were defined according to the simulated tasks.
- So, for modeling of tides, on open borders of computational grid, in the sea of Kars the conditions of change of level were asked. Tidal wave parameters were made from the global Tide Model TPXO 7.2, which assimilates the data of the satellite altimet...
- River runoff was set on the river borders in the places of confluence of OB, Pur and Taz rivers on the average annual hydrograph of river runoff from the site http://www.r-arcticnet.sr.unh.edu/v4.0/. At the borders of the grid adjacent to the land, th...
- To calculate the mode of waves in the port area was chosen wave model ARTEMIS, open source, which is part of the software system TELEMAC. The model describes the reflection of the waves from the obstacles, the diffraction of the waves behind the obsta...
- Wave pattern for each calculated storm is stationary, so the parameters obtained for the key points of excitement fully represent the time series of waves.
- The results of calculations, obtained, with the help of models SWAN and COASTOX, adapted for the calculation of waves and currents in Ob lip, in comparison with the data of measurements in the region are presented. and results of prediction of wave fi...
- 3. Results and Discussion
- 4. Conclusions
- References
- Численное моделирование нелинейных гидродинамических процессов береговой зоны
- Литература
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