| 平流层飞艇定点气动力计算与仿真分析 |
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| 引用本文： | 吴二兵,胡少兴,张爱武. 平流层飞艇定点气动力计算与仿真分析[J]. 计算机仿真, 2012, 29(5): 64-68,166 |
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| 作者姓名： | 吴二兵 胡少兴 张爱武 |
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| 作者单位： | 1. 北京航空航天大学机械工程及自动化学院,北京100191;首都师范大学三维信息获取与应用教育部重点实验室,北京100037
2. 北京航空航天大学机械工程及自动化学院,北京,100191 |
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| 摘 要： | 研究飞艇定点动力性能分析,关于平流层飞艇动力特性问题是影响系统稳定的关键。为使飞艇能正常工作,必须对气动特性进行精确地分析。根据平流层飞艇的定点飞行特点,考虑空气粘性因素,建立了平流层飞艇的湍流边界层方程,采用动量积分关系式方法,求解飞艇表面摩擦阻力,利用有限元分析软件ANSYS仿真,分析了飞艇的空气动力特性。仿真结果表明,空气黏性对飞艇运动的影响不可忽略,动量积分法可有效解决飞艇摩擦阻力的计算。
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| 关 键 词： | 平流层飞艇 驻空 气动力 边界层 动量积分法 仿真 |
Calculation and Simulation Analysis of Aerodynamic Force for Stratosphere Airship during Floating Flight |
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| WU Er-bing , HU Shao-xing , ZHANG Ai-wu. Calculation and Simulation Analysis of Aerodynamic Force for Stratosphere Airship during Floating Flight[J]. Computer Simulation, 2012, 29(5): 64-68,166 |
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| Authors: | WU Er-bing HU Shao-xing ZHANG Ai-wu |
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| Affiliation: | 1(1.School of Mechanical Engineering and Automation,Beijing University of Aeronautics and Astronautics,Beijing 100191,China; 2.Key Laboratory of 3D Information Acquisition And Application,Capital Normal University,Beijing 100037,China) |
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| Abstract: | Research the dynamic performance analysis about airship during floating flight.Dynamic characteristic is the key to influencing stability of airship system.To ensure that stratosphere airship can work properly,aerodynamic characteristics have to be analyzed accurately.Considering the characteristics of floating flight and the factor of air viscosity,turbulent boundary layer equations were established.Applying the momentum integral method,skin-friction resistance of airship was solved.Adopting ANSYS to simulate,aerodynamic characteristics of airship were analyzed.Results of simulation indicate that influence of air viscosity on the motion of airship cannot be neglected,and momentum integral method can be validly used for calculating friction resistance. |
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| Keywords: | Stratosphere airship Floating flight Aerodynamic force Boundary layer Momentum integral method Simulation |
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