空气动力学学报Issue(6)：787-792,817,7.DOI:10.7638/kqdlxxb-2014.0056
多分裂子导线气动力系数风洞试验研究
Wind tunnel test on aerodynamic coefficients of multi-bundled sub-conductors
摘要
Abstract
To investigate the changing patterns of multi-bundled sub-conductor aerodynamic coefficients versus the Reynolds number and the wind attack angle,rigid models of two,four and eight bundled conductors are designed and manufactured,and the surface roughness of real con-ductors is imitated,and high frequency force wind tunnel tests with different wind velocity and wind attack angle are carried on,and the results are compared with existed ones at home and abroad.The results show that the influence of the Reynolds number on multi-bundled sub-conductor drag coefficients is different from that on single conductor drag coefficients;upstream sub-conductors have shielding effect on downstream ones,drag coefficients of downstream sub-conductors become smaller with the decrease of the shielding distance;as the turbulence intensity grows,the shielding effect on drag coefficients is weakened,and drag coefficients of downstream sub-conductors grow,however,the shielding effect is still obvious and the influence of wake interference around sub-conductors on drag coefficients can’t be ignored,so it is recommended to add sub-conductor drag coefficients into the code in consideration of the shielding effect.关键词
多分裂导线/子导线/气动力系数/风洞试验Key words
multi-bundled conductor/sub-conductor/aerodynamic coefficient/wind tunnel test分类
航空航天引用本文复制引用
楼文娟,李天昊,吕中宾,卢明..多分裂子导线气动力系数风洞试验研究[J].空气动力学学报,2015,(6):787-792,817,7.基金项目
国家自然科学基金 （）
