采用滑移理论计算和数值模拟方法研究超疏水表面的减阻性能.层流流动状态的数值模拟和理论计算结果的一致性较好,并可证明滑移速度与通道内流体速度之比与无量纲压降比的数量级相当;湍流状态的数值仿真结果表明,在目前可实现的滑移速度范围内,超疏水表面对水下航行器的流体阻力影响不显著. The drag reduction performance of the superhydrophobic surface is studied by using the slip theory and numerical simulation.The numerical simulation of the laminar flow state is in good agreement with the theoretical calculation results and it can be proved that the ratio of the slip velocity to the fluid velocity in the channel is infinitely variable The magnitude of pressure drop is quite order of magnitude. The numerical simulation of turbulent flow shows that the effect of superhydrophobic surface on the fluid resistance of underwater vehicle is not significant at the present achievable sliding velocity.