引航道口门区水流数值模拟研究

Numerical Simulation of Flow Conditions in the Entrance Area of Fairway

引航道口门区的水流条件直接影响通航的安全与效率,因此,研究引航道口门区水流条件具有非常重要的意义。文章基于MIKE软件建立水动力模型,对工程前后口门区水流条件进行研究。得出修建枢纽工程,一方面,可以有效地减小引航道口门区纵、横向水流流速,有效增加上游口门区水深,增加船舶吃水深度;另一方面,修建枢纽工程会引起下游口门区水位降低,横向流在下引航道口门区会形成旋流,使船舶的通航容易受到影响。

The water flow condition in the entrance area of the channel is directly affecting the safety and efficiency of navigation.Therefore,it is of great significance to study the flow conditions in the estuary area.Based on MIKE software,this paper establishes a hydrodynamic model to study the flow conditions in the front and back gate areas.It is concluded that the construction of the hub project can effectively reduce the longitudinal and transverse flow velocity of the channel entrance area,effectively increase the depth of the upstream mouth area and increase the depth of the ship＇s draft.On the other hand,the area at the entrance of the building project will cause the downstream water level is reduced,the lateral flow in the TGP flood-discharge area will form at the entrance of the spiral flow,make the ship＇s navigation easy to be affected,finally put forward the corresponding improving navigation conditions of the necessary measures.