| 抽吸气体回送位置及流量比例对整车风洞试验段流场影响的研究 |
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| 引用本文： | 杨志刚,李启良,杨帆. 抽吸气体回送位置及流量比例对整车风洞试验段流场影响的研究[J]. 汽车工程, 2010, 32(4) |
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| 作者姓名： | 杨志刚 李启良 杨帆 |
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| 作者单位： | 同济大学上海地面交通工具风洞中心,上海,201804 |
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| 基金项目： | 高等学校博士学科点专项科研基金，高等学校创新引智计划 |
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| 摘 要： | 为探讨不同抽吸气体回送方案对整车风洞试验段流场的影响,运用Fluent软件对两种回送方案的流场进行模拟,计算了边界层位移厚度、静压因数和总压损失.结果表明,抽吸气体回送位置在边界层厚度控制效果方面几乎没有差别,而在静压因数分布以及总压损失上则差异较大,方案1的静压因数分布较方案2均匀,总压损失却比方案2大,至于两个回风口流量比例,它只对静压因素分布有影响,但在方案2中其影响小于方案1.
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| 关 键 词： | 整车风洞 试验段流场 边界层 抽吸气体回送 |
A Study on the Effects of Drawn-air Flow-back Location and Flow Ratio on the Flow Field in the Test Section of Full Scale Wind Tunnel |
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| Yang Zhigang,Li Qiliang , Yang FanShanghai Automotive Wind Tunnel Center,Tongji University,Shanghai. A Study on the Effects of Drawn-air Flow-back Location and Flow Ratio on the Flow Field in the Test Section of Full Scale Wind Tunnel[J]. Automotive Engineering, 2010, 32(4) |
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| Authors: | Yang Zhigang Li Qiliang & Yang FanShanghai Automotive Wind Tunnel Center Tongji University Shanghai |
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| Affiliation: | Yang Zhigang,Li Qiliang & Yang FanShanghai Automotive Wind Tunnel Center,Tongji University,Shanghai 201804 |
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| Abstract: | To investigate the effects of different schemes for flow back of drawn air on the flow field in the test section of full scale wind tunnel,CFD software Fluent is used to simulate the flow field with two flow back schemes and calculate the boundary layer displacement thickness,static pressure factor and total pressure loss.The results indicate that the different locations of drawn air flow back make no difference in boundary layer displacement thickness control effects,but have an obvious impact on the stati... |
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| Keywords: | full scale wind tunnel flow field in test section boundary layer drawn-air flow-back |
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