非光滑结构对水下航行器压差阻力的影响

The Research of the Drag Reduction of Non-Smooth Underwater Vehicle

摘要: 覆盖非光滑表面是降低水下航行器阻力最直接、最有效的办法，本文对水下航行器的压差阻力进行了研究，将吸附性非光滑结构和导流性非光滑结构分别安装在航行器的流固分离处，采用流体动力学仿真的方法研究两类非光滑结构对流体尾部流场的影响，研究表明，在航行器流固分离位置覆盖吸附性非光滑结构能够延迟流固分离，有效降低航行器压差阻力。

Abstract: Covered the surface of underwater vehicle with non-smooth surface is the most directly and most effective method, the writer studied the pressure drag of underwater vehicle, put the diversion structure and adsorption structure on the fluid-solid separation phase, use the CFD method to study the effect of non-smooth surface to the tail of underwater vehicle. Results show that put the adsorption structure on the fluid-solid separation phase can reduce the pressure drag of underwater vehicle.