| 双幅桥静分力系数气动干扰效应研究 |
| |
| 引用本文： | 郭春平,白桦,洪光.双幅桥静分力系数气动干扰效应研究[J].重庆交通大学学报(自然科学版),2011,30(5):899-902,942. |
| |
| 作者姓名： | 郭春平 白桦 洪光 |
| |
| 作者单位： | 长安大学公路学院,陕西西安,710064 |
| |
| 摘 要： | 采用计算流体动力学(CFD)的方法,利用F1unet软件对某双幅桥面桥梁三分力系数的气动干扰效应进行数值模拟.结果表明:由于前桥对后桥的遮挡作用,后桥的静力三分力系数受到较大影响,阻力系数与单桥相比减小了74％,升力系数减小了88％；随着前后桥间距的增大,双幅桥梁之间的气动干扰效应逐渐减小,但双幅桥面达到8b(b为梁高...
|
| 关 键 词： | 双幅桥面 三分力系数 气动干扰 数值模拟 |
On Effects of Aerodynamic Interference on Aerodynamic Coefficients of Twin-deck Bridges |
| |
| GUO Chun-ping,BAI Hua,HONG Guang.On Effects of Aerodynamic Interference on Aerodynamic Coefficients of Twin-deck Bridges[J].Journal of Chongqing Jiaotong University,2011,30(5):899-902,942. |
| |
| Authors: | GUO Chun-ping BAI Hua HONG Guang |
| |
| Institution: | (Highway School,Chang’an University,Xi’an 710064,Shanxi,China) |
| |
| Abstract: | Aerodynamic interference effects between the windward and the leeward deck of twin-deck were simulated by computational fluid dynamics(CFD) method through Fluent.Results indicate that due to the shelter effect,static component coefficient of rear axle was greatly influenced;resistance coefficient reduced by 74% compared with single bridge;lift coefficient decreased by 88%.The aerodynamic interference effect decreased gradually with rear axle space increasing;when space reached 8b(b was the ratio of beam height and double deck bridge space),there remained certain aerodynamic interference phenomenon,which could not be ignored. |
| |
| Keywords: | twin decks aerodynamic coefficients aerodynamic interference numerical simulation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
