基于重叠网格的全垫升式气垫船垫升运动数值模拟研究  

Numerical Research on Lift Motion of Air Cushion Vehicle with Overset Grid

作　　者：杨祥俊 诸葛凌波[2] 顾孟潇 朱仁传[1] YANG Xiangjun;ZHUGE Lingbo;GU Mengxiao;ZHU Renchuan(State Key Laboratory of Ocean Engineering,School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Marine Design and Research Institute of China,Shanghai 200011,China)

机构地区：[1]上海交通大学船舶海洋与建筑工程学院海洋工程国家重点实验室,上海200240 [2]中国船舶及海洋工程设计研究院,上海200011

出　　处：《中国造船》2022年第3期20-30,共11页Shipbuilding of China

摘　　要：论文采用基于重叠网格的CFD方法模拟气垫船航行中的气垫兴波、泄流和垫升运动。在气垫区域控制方程中添加质量源项模拟升力风机对流场的影响,并对气垫船模型进行了合理简化。通过陆地和水面静垫升高度的计算结果与理论公式结果的比较验证了论文方法的合理性。对气垫船登滩过程垫升运动的研究表明,在水深小于一定限值后垫升高度随水深减小而增大。对气垫兴波的研究表明,垫升运动使兴波阻力的计算结果增大,并且更接近模型试验的测量结果。The paper adopts CFD method together with overset grids to simulate wave-making by the air cushion,leakage flow and the lift motion of the air cushion vehicle(ACV)model.The ACV model is reasonably simplified,and mass source method is applied to simulate the influence of the lift fan on the flow field.Comparison of lift-off height between the theoretical formula and the numerical results under land case and water case verifies the rationality of this method.The lift motion of the ACV in beach-landing is studied.It is found that when water depth is less than a certain value,the lift-off height increases as the water depth decreases.In addition,lift motion of the ACV will increase wave-making resistance,which is closer to the measurement data in the model test.

关 键 词：气垫船 垫升运动 计算流体力学 重叠网格 兴波阻力 

分 类 号：U661.31[交通运输工程—船舶及航道工程]