Wave dynamics features in a sea ice areas
On a base of developed hydrodynamic models the reflecting capacities of edges, cracks and ice field breaks are studied when the surface waves pass through them. It was investigated the ice flexural rigidity and compression effects on the spatial distribution of wave disturbance amplitudes and bend s...
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| Дата: | 2003 |
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| Автори: | , , , |
| Формат: | Стаття |
| Мова: | English |
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Національний антарктичний науковий центр МОН України
2003
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| Назва видання: | Український антарктичний журнал |
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| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/128120 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Wave dynamics features in a sea ice areas / A.A. Bukatov, A.E Bukatov, V.V. Zharkov, D.D. Zav'yalov // Український антарктичний журнал. — 2003. — № 1. — С. 25-29. — Бібліогр.: 14 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine |
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Океанологія Океанологія |
| spellingShingle |
Океанологія Океанологія Bukatov, A.A. Bukatov, A.E Zharkov, V.V. Zav'yalov, D.D. Wave dynamics features in a sea ice areas Український антарктичний журнал |
| description |
On a base of developed hydrodynamic models the reflecting capacities of edges, cracks and ice field breaks are studied when the surface waves pass through them. It was investigated the ice flexural rigidity and compression effects on the spatial distribution of wave disturbance amplitudes and bend stresses of the ice cover on both sides of the examined horizontal non-uniformity. Assessment of the ice breaking possibility within the edge-side zones was made. The surface wave propagation from the basin deep-water area through the bottom’s step into the area of the finite depth is investigated. The spatial and temporal features of the formed dynamic frontal zones on both sides of the step are revealed. The dependence of the basin surface displacement amplitudes and wave current velocities on the ice thickness, incident wave periods, and depth of the step occurrence, is studied. The three-dimensional bending vibrations of floating ice cover induced by a moving vortex formation are studied. Dependence of the amplitude-phase vibration characteristics on the ice rigidity in bending, angular velocity and forward speed of the vortex is investigated. Spatial distribution of the flexural-gravity disturbances both in front of the moving pressure region and in the back wake is analyzed. A mathematical model of the non-linear dynamics of surface waves of finite amplitude in the ice floes seas was developed involving the method of multiscale expansions. Using the model, it was studied the dependence of the amplitude-phase structure of disturbances, formed by the propagating non-linear periodic waves, on the basin depth, ice thickness and non-linearity of its vertical acceleration, frequency and steepness of initial wave harmonics. The ice Stokes drift velocity was estimated as well as the ice induced non-linear mass transport analyzed. |
| format |
Article |
| author |
Bukatov, A.A. Bukatov, A.E Zharkov, V.V. Zav'yalov, D.D. |
| author_facet |
Bukatov, A.A. Bukatov, A.E Zharkov, V.V. Zav'yalov, D.D. |
| author_sort |
Bukatov, A.A. |
| title |
Wave dynamics features in a sea ice areas |
| title_short |
Wave dynamics features in a sea ice areas |
| title_full |
Wave dynamics features in a sea ice areas |
| title_fullStr |
Wave dynamics features in a sea ice areas |
| title_full_unstemmed |
Wave dynamics features in a sea ice areas |
| title_sort |
wave dynamics features in a sea ice areas |
| publisher |
Національний антарктичний науковий центр МОН України |
| publishDate |
2003 |
| topic_facet |
Океанологія |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/128120 |
| citation_txt |
Wave dynamics features in a sea ice areas / A.A. Bukatov, A.E Bukatov, V.V. Zharkov, D.D. Zav'yalov // Український антарктичний журнал. — 2003. — № 1. — С. 25-29. — Бібліогр.: 14 назв. — англ. |
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Український антарктичний журнал |
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AT bukatovaa wavedynamicsfeaturesinaseaiceareas AT bukatovae wavedynamicsfeaturesinaseaiceareas AT zharkovvv wavedynamicsfeaturesinaseaiceareas AT zavyalovdd wavedynamicsfeaturesinaseaiceareas |
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2023-10-18T20:54:36Z |
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2023-10-18T20:54:36Z |
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1796151426679832576 |
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irk-123456789-1281202018-01-07T03:02:40Z Wave dynamics features in a sea ice areas Bukatov, A.A. Bukatov, A.E Zharkov, V.V. Zav'yalov, D.D. Океанологія On a base of developed hydrodynamic models the reflecting capacities of edges, cracks and ice field breaks are studied when the surface waves pass through them. It was investigated the ice flexural rigidity and compression effects on the spatial distribution of wave disturbance amplitudes and bend stresses of the ice cover on both sides of the examined horizontal non-uniformity. Assessment of the ice breaking possibility within the edge-side zones was made. The surface wave propagation from the basin deep-water area through the bottom’s step into the area of the finite depth is investigated. The spatial and temporal features of the formed dynamic frontal zones on both sides of the step are revealed. The dependence of the basin surface displacement amplitudes and wave current velocities on the ice thickness, incident wave periods, and depth of the step occurrence, is studied. The three-dimensional bending vibrations of floating ice cover induced by a moving vortex formation are studied. Dependence of the amplitude-phase vibration characteristics on the ice rigidity in bending, angular velocity and forward speed of the vortex is investigated. Spatial distribution of the flexural-gravity disturbances both in front of the moving pressure region and in the back wake is analyzed. A mathematical model of the non-linear dynamics of surface waves of finite amplitude in the ice floes seas was developed involving the method of multiscale expansions. Using the model, it was studied the dependence of the amplitude-phase structure of disturbances, formed by the propagating non-linear periodic waves, on the basin depth, ice thickness and non-linearity of its vertical acceleration, frequency and steepness of initial wave harmonics. The ice Stokes drift velocity was estimated as well as the ice induced non-linear mass transport analyzed. На основе разработанных гидродинамических моделей выполнено исследование экранирующих свойств кромок, трещин и разломов ледяных полей при распространении через них поверхностных волн. Изучено влияние цилиндрической жесткости льда и силы ледового сжатия на пространственное распределение амплитуд волновых возмущений и напряжений изгиба ледяного покрова по обе стороны от каждой из рассмотренных горизонтальных неоднородностей. Дана оценка возможности разлома льда в прикромочных зонах. Исследовано распространение поверхностных волн из глубоководной области бассейна через уступ дна в область конечной глубины. Выявлены пространственно-временные особенности структуры формируемых динамических фронтальных зон по обе стороны от уступа. Исследована зависимость амплитуд смещения поверхности бассейна и скорости волновых течений от толщины льда, периода набегающей волны и глубины залегания уступа. Изучены трехмерные изгибные колебания плавающего ледяного покрова, возбуждаемые движущимся вихревым образованием. Исследована зависимость амплитудно-фазовых характеристик колебаний от изгибной жесткости льда, угловой и поступательной скоростей вихря. Выполнен анализ пространственного распределения изгибно-гравитационных возмущений впереди движущейся области и в волновом следе за ней. Методом многомасштабных разложений построена математическая модель нелинейной динамики поверхностных волн конечной амплитуды в морских акваториях с плавающим льдом. На ее основе исследована зависимость амплитудно-фазовой структуры возмущений, формируемых бегущими нелинейными периодическими волнами, от глубины бассейна, толщины льда и нелинейности его вертикального ускорения, частоты и крутизны начальных волновых гармоник. Дана оценка скорости стоксового дрейфа льда, проведен анализ влияния льда на нелинейный перенос массы. 2003 Article Wave dynamics features in a sea ice areas / A.A. Bukatov, A.E Bukatov, V.V. Zharkov, D.D. Zav'yalov // Український антарктичний журнал. — 2003. — № 1. — С. 25-29. — Бібліогр.: 14 назв. — англ. 1727-7485 http://dspace.nbuv.gov.ua/handle/123456789/128120 551.46: 532.59 en Український антарктичний журнал Національний антарктичний науковий центр МОН України |