论文:2014,Vol:32,Issue(2):246-250
引用本文:
刘欢欢, 潘光, 杜晓旭. 高空远程滑翔UUV气动参数仿真与估算研究[J]. 西北工业大学
Liu Huanhuan, Pan Guang, Du Xiaoxu. Estimation and Simulation of Aerodynamic Parameters of High-Altitude Long-Distance Gliding UUV[J]. Northwestern polytechnical university

高空远程滑翔UUV气动参数仿真与估算研究
刘欢欢, 潘光, 杜晓旭
西北工业大学 航海学院, 陕西 西安 710072
摘要:
为了研究高空远程滑翔UUV气动参数特性,运用计算流体动力学(computational fluid dynamics,CFD)理论,采用结构和非结构分域混合网格方案,确定计算域、边界条件、求解Navier-Stokes方程对亚音速下高空远程滑翔UUV三维绕流流场进行数值模拟。仿真数据与估算数据进行对比,分析UUV的纵向气动特性、横向气动特性和操纵导数特性,结果显示,仿真数据与计算数据吻合较好,并且其气动特性满足航行器的低阻特性和静稳定性的要求,两种计算方法的准确性进行了相互验证,不仅利于下一步进行航行器的操纵性、稳定性和弹道特性研究,而且为进一步完善设计和模型加工试验提供重要依据。
关键词:    高空滑翔    数值仿真    混合网格    气动特性   
Estimation and Simulation of Aerodynamic Parameters of High-Altitude Long-Distance Gliding UUV
Liu Huanhuan, Pan Guang, Du Xiaoxu
College of Marine Engineering, Northwestern Polytechnical University, Xi'an 710072, China
Abstract:
In order to study the pneumatic parameter characteristics of the high-altitude long-distance gliding UUV with computational fluid dynamics theory, we use the hybrid grid strategy, determine the computational domain and boundary conditions, solve the Navier-Stokes computation, and complete the three-dimensional subsonic flow field numerical simulation of the UUV. Comparing simulation results with estimation results ones, we analyze the longitu-dinal aerodynamic parameters, the lateral aerodynamic parameters and the manipulation derivatives. The results and their analysis show preliminarily that: (1 ) the calculated and simulated results are consistent; (2 ) aerodynamic characteristics meet the requirements of the low draft characteristic and the static stability of the UUV. The two methods give consistent results;they not only facilitate studying the maneuverability, stability and ballistic charac-teristics of the UUV, but also provide an important basis for improving the designs and processing of experimental models.
Key words:    boundary conditions    calculations    computational fluid dynamics    computer simulation    design    estimation    experiments    flow fields    gliders    maneuverability    mesh generation    Navier Stokes equations    stability    subsonic aerodynamics    turbulence models    unmanned vehicles    aerodynamic characteristics    high attitude gliding    hybrid grid   
收稿日期: 2013-09-18     修回日期:
DOI:
基金项目: 国家自然科学基金(51279165)资助
通讯作者:     Email:
作者简介: 刘欢欢(1987-),女,西北工业大学博士研究生,主要从事水下航行器流体力学及水下航行器操纵性研究。
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