Abstract—

Using a mathematical model of wind currents, supplemented by a module for the suspended sediment silt transfer and sedimentation, the spatiotemporal features of the accumulation of river sediments in the Don avandelta in different wind conditions (east and west wind surges and light winds of variable directions) are identified. It is shown that the exposure to an east wind of 6 to 8 m/s during the entire settlement period (6–7 calendar days) makes the water movement in Taganrog Bay progressive, and under the action of a southwest wind of the same speed, the pattern of current lines changes over time from progressive movements on the first day to the formation of two circulation zones in the area of the city of Taganrog and in the central part of the Don avandelta. It is also shown that the fields of suspended matter concentration are similar for different fractions of solids. Under the action of the east wind, they stretch along the extension of the axis of the main delta arms at the bay; under the action of the southwest wind, they are pressed to the arms’ mouths. During the east wind surges, the heavy fractions of sediment settle in the area of the Azov-Don navigable canal, and the light ones are carried off by the stream towards the bay. During the west wind surges, the sedimentation of the suspended solids occurs near the estuary, the heavy fractions form three areas of bottom deformation near the mouths of the main delta arms and the light ones, only two areas.

中文翻译：

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模拟从顿河向亚速海的塔甘罗格湾悬浮固体的径流输入

摘要-

利用风流的数学模型，再加上用于悬浮泥沙淤积转移和沉降的模块，在不同风况（东风和西风和不同方向的轻风）下，唐Avandelta河中的泥沙堆积的时空特征）被识别。结果表明，在整个沉降期（6-7个日历日）内，暴露于6至8 m / s的东风会使塔甘罗格湾的水运动逐渐进行，并且在相同速度的西南风的作用下，从第一天的渐进运动到塔甘罗格（Taganrog）市地区和唐·阿凡德尔塔（Don avandelta）中部两个环流区的形成，电流线的模式随时间变化。还显示出，对于固体的不同部分，悬浮物浓度的场是相似的。在东风的作用下，它们沿着海湾的主要三角洲支臂的轴线延伸。在西南风的作用下，它们被压在手臂的嘴上。在东风潮期间，沉重的沉积物部分沉积在亚速河-顿河通航运河区域，而轻度的沉积物则被水流带向海湾。在西风潮期间，悬浮固体的沉积发生在河口附近，重组分在三角洲主臂和轻臂的口附近形成了三个底部变形区域，只有两个区域。在西南风的作用下，它们被压在手臂的嘴上。在东风潮期间，沉重的沉积物部分沉积在亚速河-顿河通航运河区域，而轻度的沉积物则被水流带向海湾。在西风潮期间，悬浮固体的沉积发生在河口附近，重组分在三角洲主臂和轻臂的口附近形成了三个底部变形区域，只有两个区域。在西南风的作用下，它们被压在手臂的嘴上。在东风潮期间，沉重的沉积物部分沉积在亚速河-顿河通航运河区域，而轻度的沉积物则被水流带向海湾。在西风潮期间，悬浮固体的沉积发生在河口附近，重组分在三角洲主臂和轻臂的口附近形成了三个底部变形区域，只有两个区域。