| 大尺度回转体脊状表面减阻试验 |
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| 引用本文： | 刘占一,宋保维,胡海豹,黄桥高,姜军.大尺度回转体脊状表面减阻试验[J].航空动力学报,2011,26(1):161-166. |
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| 作者姓名： | 刘占一 宋保维 胡海豹 黄桥高 姜军 |
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| 作者单位： | 西北工业大学航海学院,西安,710072 |
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| 基金项目： | 国家自然科学基金，西北工业大学科技创新基金，陕西省自然科学基础研究计划 |
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| 摘 要： | 对表面光滑和有脊状结构的大尺度回转体模型在风洞中进行了变速度、变攻角试验,为脊状表面减阻技术的工程化应用提供了参考.对比分析发现:来流速度对脊状表面减阻效果有很大影响,减阻效果随速度增加呈现先增大后减小的趋势,在某一速度达到最佳,减阻效果提高20%;攻角对脊状表面减阻效果影响有限;脊状结构的存在对模型升力系数和俯仰力矩...
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| 关 键 词： | 脊状结构 大尺度回转体 攻角 减阻效果 风洞 |
| 收稿时间： | 2009/11/25 0:00:00 |
| 修稿时间： | 1/21/2010 9:21:33 AM |
Experiment investigation about drag reduction of riblet structure on large-scale cylinder |
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| LIU Zhan-yi,SONG Bao-wei,HU Hai-bao,HUANG Qiao-gao and JIANG Jun.Experiment investigation about drag reduction of riblet structure on large-scale cylinder[J].Journal of Aerospace Power,2011,26(1):161-166. |
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| Authors: | LIU Zhan-yi SONG Bao-wei HU Hai-bao HUANG Qiao-gao and JIANG Jun |
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| Institution: | LIU Zhan-yi,SONG Bao-wei,HU Hai-bao,HUANG Qiao-gao,JIANG Jun(School of Marine Technology,Northwestern Polytechnical University,Xi'an 710072,China) |
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| Abstract: | Experiments of large-scale cylinder model with smooth and riblet surfaces were carried out under different speeds and attack angles in wind tunnel,providing a reference for engineering application of drag reduction technique about riblet surface.Results from comparison and analysis are as follows:wind speed has a great influence on drag reduction effect of riblet surface.Drag reduction effect increases first,then decreases with increasing wind speed,and reaches to peak at certain speed.The drag reduction ef... |
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| Keywords: | riblet structure large-scale cylinder attack angle drag reduction effect wind tunnel |
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