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光滑和脊状表面湍流边界层流场对比试验研究
  • ISSN号：1000-1093
  • 期刊名称：兵工学报
  • 时间：0
  • 页码：769-772
  • 分类：O357[理学—流体力学;理学—力学]
  • 作者机构：[1]西北工业大学航海学院,陕西西安710072
  • 相关基金：国家自然科学基金面上项目（10672136）;国家自然科学基金重点项目（50835009）;西北工业大学科技创新基金项目（2008KJ02012）
  • 相关项目：界面减阻与表面行为机理
作者： 宋保维|刘占一|胡海豹|黄明明|黄桥高|马骥|SONG Bao-wei,LIU Zhan-yi,HU Hai-bao,HUANG Ming-min|
关键词： 流体力学, 风洞, 热线风速仪, 脊状表面, 湍流度, 减阻, hydromechanics, wind tunnel, hot-wire anemometry, riblet surface, turbulent intensity, drag-reduction
中文摘要：

在低速风洞中使用热线风速仪测试了光滑表面和脊状表面同一位置处的边界层流向速度分布。对比分析湍流统计平均量发现,有减阻效果的脊状表面使近壁区流速变大、湍流度降低,但对高阶矩的影响不明显;通过计算动量损失厚度,发现脊状表面具有超过10%的减阻量。

英文摘要：

Measurements on velocity distributions in boundaries at the same point over smooth and riblet surface were carried out by means of hot-wire anemometer in low-speed wind tunnel. It was found that the riblet surface, having drag reducing effect, can increase near-wall flow velocity and decrease turbulent intensity, but have little influence on high-order moment by contrasting and analyzing the turbulence statistical average values, and have more than 10 percent drag-reduction by calculating momentum loss thickness.

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期刊信息
  • 《兵工学报》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学技术协会
  • 主办单位:中国兵工学会
  • 主编：许毅达
  • 地址：北京2431信箱
  • 邮编：100089
  • 邮箱：acta@cn-bgxh.cn
  • 电话：010-68962718 68963060
  • 国际标准刊号：ISSN：1000-1093
  • 国内统一刊号：ISSN：11-2176/TJ
  • 邮发代号:82-144
  • 获奖情况:
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,荷兰文摘与引文数据库,美国工程索引,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:15352