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基于大涡模拟的平流层浮空器气动特性分析

王裕夫 陶国权 刘东旭 武哲

王裕夫, 陶国权, 刘东旭, 等 . 基于大涡模拟的平流层浮空器气动特性分析[J]. 北京航空航天大学学报, 2015, 41(4): 616-623. doi: 10.13700/j.bh.1001-5965.2014.0535
引用本文: 王裕夫, 陶国权, 刘东旭, 等 . 基于大涡模拟的平流层浮空器气动特性分析[J]. 北京航空航天大学学报, 2015, 41(4): 616-623. doi: 10.13700/j.bh.1001-5965.2014.0535
WANG Yufu, TAO Guoquan, LIU Dongxu, et al. Analysis of stratospheric lighter-than-air vehicle's aerodynamic characteristics based on large eddy simulation[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(4): 616-623. doi: 10.13700/j.bh.1001-5965.2014.0535(in Chinese)
Citation: WANG Yufu, TAO Guoquan, LIU Dongxu, et al. Analysis of stratospheric lighter-than-air vehicle's aerodynamic characteristics based on large eddy simulation[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(4): 616-623. doi: 10.13700/j.bh.1001-5965.2014.0535(in Chinese)

基于大涡模拟的平流层浮空器气动特性分析

doi: 10.13700/j.bh.1001-5965.2014.0535
基金项目: 北航蓝天新秀基金资助项目(YWF-13-T-RSC-071)
详细信息
    作者简介:

    王裕夫(1988—),男,四川成都人,博士生,justin-psp@163.com

    通讯作者:

    陶国权(1983—),男,浙江绍兴人.讲师,ac97531@163.com,主要研究方向为飞行器总体设计,复合材料结构设计,无人机研制,螺旋桨优化设计.

  • 中图分类号: O357.1

Analysis of stratospheric lighter-than-air vehicle's aerodynamic characteristics based on large eddy simulation

  • 摘要: 为研究不同球体间距对“球形囊体型”平流层浮空器(SLV)气动特性的影响,采用有限体格式、结构网格和大涡模拟(LES)计算方法求解不可压缩的Navier-Stokes(N-S)方程,对超临界雷诺数“球形囊体型”平流层浮空器绕流进行数值模拟,并对不同球体间距下的数值计算结果进行详细的分析比较.通过对比试验数据,单球体数值模拟的阻力系数时均值与Achenbach的试验数据一致,验证了计算方法分析超临界雷诺数球体绕流问题的准确性.研究不同间距的双球体阻力变化规律以及振动频谱特性,随上下游球体间距G的增加,合阻力先增大后减小,上游球体的阻力占优振动频率逐渐减小;G=1.5D(D为球体直径)和G=2D时,上下游球体有相同的占优振动频率.随间距G的增加,两球体相互作用与上游球体对下游球体的尾涡结构影响逐渐减弱.

     

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出版历程
  • 收稿日期:  2014-08-30
  • 修回日期:  2014-10-10
  • 刊出日期:  2015-04-20

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