Estuarine hydrodynamics is a key factor for altering the inlet and its adjacent morphodynamics. Sediment transport in estuaries is controlled by the hydrodynamic action of wind, wave, tide, currents and river runoff. Sediment transport rate near a tropical estuary i.e., Rushikulya, east coast of India was assessed based on field surveys carried out during 2008 and 2009, covering both southwest and northeast monsoon wind field. A depth-averaged two-dimensional model was used to simulate and estimate sediment transport through a validated hydrodynamic and wave model output. The total sediment load, transport direction and bed level changes were estimated using Mike 21 Sediment Transport (ST) model. During the northeast monsoon, the sediment transport on the south varied from 2 $\times$ 10⁻⁶ to 6 $\times$ 10⁻⁶m³/s/m while at north of the inlet, it was constant with a value of 2 $\times$ 10⁻⁶m³/s/m and transport direction ranges from 330 to 350° at south and 280 to 320° at north. During southwest monsoon, the sediment load ranged from 2 x 10⁻⁶ to 2 x 10⁻⁵ m³/s/m and transport directions are mostly confined to 100°. Beach profiles and shoreline position confirm the onshore–offshore​ sediment transport. The work provides baseline information, can be used for management to protect the world-famous Olive Ridley nesting beaches, adjacent to the Rushikulya estuary, east coast of India.

河口水动力是改变进口及其邻近形态动力的关键因素。河口的泥沙输送受风，浪，潮汐，水流和河流径流的水动力作用控制。根据2008年和2009年在西南和东北季风风场范围内进行的实地调查，评估了热带河口（印度东海岸Rushikulya）附近的泥沙输送速率。深度平均的二维模型用于通过验证的水动力和波浪模型输出模拟和估算泥沙输送。使用Mike 21泥沙输送（ST）模型估算了总的泥沙负荷，输送方向和床位变化。在东北季风期间，南部的泥沙运移从2$\times$10 ^-6至6$\times$10 ^-6 m ³ / s / m，而在进气口的北部，则为常数，值为2$\times$输送方向为10 ^-6 m ³ / s / m，南部为330〜350°，北部为280〜320°。在西南季风期间，沉积物负荷范围为2 x 10 ^-6到2 x 10 ^-5 m ³ / s / m，运输方向大多限制在100°。海滩轮廓和海岸线位置确定了陆上-近海沉积物的运输。该工作提供了基准信息，可用于管理以保护举世闻名的Olive Ridley嵌套海滩，该海滩毗邻印度东海岸Rushikulya河口。