大箱形物体在限制水道上的阻力特性分析  

Resistant nature analysis of a big box-shaped object on a limited channel

作　　者：吴维武[1] 吴家鸣[1] 

机构地区：[1]华南理工大学交通学院,广州510640

出　　处：《船海工程》2007年第1期14-17,共4页Ship & Ocean Engineering

摘　　要：采用重叠模方法、忽略自由表面的影响、考虑限制水道边界条件因素,利用CFD商业软件FLUENT通过求解控制大箱形物体在低流速限制水道上的Navier-Stokes方程来分析大箱形物体阻力特性。数值模拟与实验室模型试验结果的比较表明采用所提出的数值计算方法进行大箱形物体在限制水道上的阻力分析可以得出符合实际的合理结果。The resistant nature of a big box-shaped object in a limited channel of low current velocity is analyzed by means of solving the Navier-Stokes equations around the object with the commercial CFD program FLUENT. The analysis is conducted based on a double model approach with free surface effect being neglected and the factors of limited boundary conditions being considered. A comparison between numerical simulation with the proposed method and the model test results indicates that a practical and reasonable result of resistant characteristics of a big box-shaped object in the limited channel can be obtained by the numerical method.

关 键 词：计算流体力学 FLUENT 数值模拟 阻力 

分 类 号：TV131.2[水利工程—水力学及河流动力学]