一种无人水下航行器导管对转桨推进性能仿真分析
Simulation and Analysis on Propulsion Performance of an Unmanned Underwater Vehicle with DCRP

无人水下航行器(UUV)在军事、民用和科研等领域扮演着越来越重要的角色，导管对转桨(DCRP)作为UUV的一种常用推进方式，其推进性能对UUV的航速、噪声等性能有着重要的影响。本文针对UUV拖曳声纳阵的应用，设计了一型DCRP。采用计算流体力学(CFD)技术，对DCRP的水动力性能进行了数值仿真，模拟推进器在不同转速下的功率、扬程、效率、推力。结果表明，所设计的DCRP在设计转速下，其效率满足UUV推进技术指标要求。仿真结果为UUV拖曳声纳阵的推进技术设计提供了参考。
Unmanned Underwater Vehicles (UUVs) are playing increasingly crucial roles in military, civilian, and research applications. The ducted contra-rotating propeller (DCRP) as a common propulsion method for UUVs has a significant impact on the vehicle’s speed, noise, and other performance. This study focuses on the application of UUV towed sonar arrays and designs a type of DCRP. Using computational fluid dynamics (CFD) technology, the hydrodynamic performance of the DCRP was numerically simulated, including the propulsion unit’s power, head, efficiency, and thrust at different rotational speeds. The numerical simulations reveal that the designed DCRP satisfies the efficiency criteria for UUV propulsion technology at the designated condition, thereby validating its suitability for underwater applications. The simulation results provide a reference for the design of propulsion technology for UUV towed sonar arrays.