论文:2012,Vol:30,Issue(6):803-807
引用本文:
王鹏, 宁腾飞, 孟鹏. 航行体水下点火三维流场数值模拟[J]. 西北工业大学
Wang Peng, Ning Tengfei, Meng Peng. Computing Flow Field in Igniting Autonomous Underwater Vehicle Using Three-Dimensional Grids[J]. Northwestern polytechnical university

航行体水下点火三维流场数值模拟
王鹏, 宁腾飞, 孟鹏
西北工业大学 航海学院, 陕西 西安 710072
摘要:
采用三维网格和VOF(Volume of Fluids)多相流模型,对非轴对称、X型舵的航行体水下点火这一非稳态过程进行了三维流场数值模拟,捕捉了燃气泡的形成、发展及断裂过程,得到了航行体水下点火初期的流场变化和阻力变化,并进行了相关因素探讨和结果对比分析。研究表明,燃气泡的发展变化过程对航行体流场和阻力产生影响。该研究可为航行体水下点火设计及试验提供参考。
关键词:    三维网格    水下点火    VOF模型    燃气泡   
Computing Flow Field in Igniting Autonomous Underwater Vehicle Using Three-Dimensional Grids
Wang Peng, Ning Tengfei, Meng Peng
College of Marine Engineering,Northwestern Polytechnical University,Xi'an 710072,China
Abstract:
We use the three-dimensional grid and the VOF (volume of fluids) multiphase flow model to computethe three-dimensional flow field during the ignition of a non-axisymmetric autonomous underwater vehicle with X-type rudders. But the larger number of three-dimensional grids increases the computational time; in this regard, thedetermination of a reasonable number of grids and reasonable parameters can help obtain precise computational re-sults. We use more than 1 500 000 grids, the FLUENT software and the VOF multiphase flow model to compute theunsteady flow of the autonomous underwater vehicle, thus obtaining the changes in drag, exhausted gas bubbles andflow field at the beginning of its ignition process. The computational results,given in Figs. 2 through 5,and theiranalysis show preliminarily that the changes in exhausted gas bubbles exert some impact on the drag and flow fieldof the autonomous underwater vehicle. The results of comparison of our computational results with the experimentalresults,some of which are done by ourselves and some are from literatures,show that they are in general agree-ment,indicating that the computation with our method is reliable.
Key words:    autonomous underwater vehicles    computational fluid dynamics    drag    flow fields    grid computing    ignition    mathematical models    three dimensionall    unsteady flow;exhausted gas bubble    VOF multi-phase flow model   
收稿日期: 2011-11-17     修回日期:
DOI:
基金项目: 西北工业大学翱翔之星计划(11GH0317)资助
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作者简介: 王鹏(1978-),西北工业大学副教授、硕士生导师,主要从事水下航行器总体设计、流场分析等研究。
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参考文献:
[1] 曹再勇, 蔡体敏, 谭永华.富氧燃气发生器三维燃烧流场的数值模拟.西北工业大学学报, 2005, 23(5): 558-561Cao Zaiyong,Cai Timin, Tan Yonghua.Furnishing Some Theoretical Basis for Design of Oxygen-Rich Gas Generator.Journal ofNorthwestern Polytechnical University, 2005, 23(5):558-561(in Chinese)
[2] 王建儒, 赵仕厂.水下固体火箭发动机尾流场计算.固体火箭技术, 2007, 30(5): 388-391Wang Jianru,Zhao Shichang.Computations for Solid Rocketmotor Tail Flow Underwater.Journal of Solid Rocket Technology,2007, 30(5):388-391(in Chinese)
[3] 朱卫兵, 陈 宏.固体火箭发动机水下燃气泡计算.固体火箭技术, 2009, 32(5): 486-491Zhu Weibing,Chen Hong.Computations for Exhausted-Gas-Bubble of Underwater Solid Rocketmotor.Journal of Solid RocketTechnology, 2009, 32(5): 486-491(in Chinese)
[4] 王晓宏, 陈义良等.导弹水下发射时喷管的气体流动.推进技术, 2001, 22(1): 61-64Wang Xiaohong,Chen Yiliang,et al.Nozzle Flows of the Missile Launching Underwater.Journal of Propulsion Technology,2001, 22(1): 61-64(in Chinese)
[5] George Richie.The Common Aero Vehicle Space Delivery System of the Future.AIAA Space Technology Conference and Expo-sition, 1999
[6] 鲁传敬, 陈 方, 樊 泓等.导弹水下点火的流体动力研究.航空学报, 1992, 13(4): 124-130Lu Chuanjing,Chen Fang, Fan Hong, et al.The Fluid Dynamic Research on the Underwater Ignition of Missile.Acta Aeronau-tica et Astronautica Sinaca, 1992, 13(4): 124-130(in Chinese)
[7] Lindau J W.Multiphase Computations for Underwater Propulsive Flows.AIAA-2003-4105