...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Ocean Engineering >Passive control of a front inclined hole on flow structures around a surface-mounted short cylinder
【24h】

Passive control of a front inclined hole on flow structures around a surface-mounted short cylinder

机译：被动式表面倾斜短圆柱体周围流动结构上的前孔的被动控制

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

To control the wake flow of a short cylinder, a passive flow control method, a front inclined hole in the cylinder was drilled from the front surface side to the free end surface. A cylinder of an aspect ratio H/D =1 with a height H = 70 mm and a diameter D = 70 mm is used. A circulation water tunnel is used to perform NV measurements at Reynolds number of 8,570 for comparing the flow structures between the no hole and hole wakes. In order to consider the influence of the hole position, the different cylinder models of the hole height at the front from the wall are tested. Comparing with the flow structures around standard cylinder, it is found that the separation zone near the free end surface decreases and the rear separation ron increases because of the blown flow from the inclined hole. The vorticity and Reynolds shear stresses are also suppressed in the rear recirculation zone. The instantaneous large-scale eddies in the rear separation zone are divided into several small-scale eddies as increasing the angle of the inclined hole.
机译：为了控制短气缸的尾流，采用被动流量控制方法，在气缸的前倾斜孔从前表面侧钻至自由端面。使用纵横比H / D = 1的圆柱体，高度为H = 70 mm，直径D = 70 mm。使用循环水隧道以雷诺数8,570进行NV测量，以比较无孔和孔尾流之间的流动结构。为了考虑孔位置的影响，测试了从墙前部开始的孔高度的不同圆柱模型。与标准气缸周围的流动结构相比，发现由于倾斜孔吹出的气流，自由端表面附近的分离区域减小，而后分离角增大。在后再循环区中，涡度和雷诺剪切应力也得到抑制。在后分离区中的瞬时大涡旋随着倾斜孔角度的增加而分为几个小涡旋。

著录项

  • 来源
    《Ocean Engineering》 |2019年第1期|106383.1-106383.11|共11页
  • 作者

    Rinoshika Hiroka; Rinoshika Akira;

  • 作者单位

    Yamagata Univ Grad Sch Sci & Engn Dept Mech Syst Engn 4-3-16 Jonan Yonezawa Yamagata 9928510 Japan;

    Yamagata Univ Grad Sch Sci & Engn Dept Mech Syst Engn 4-3-16 Jonan Yonezawa Yamagata 9928510 Japan|Beijing Univ Aeronaut & Astronaut Sch Aeronaut Sci & Engn 37 Xueyuan Beijing 100191 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Flow measurement; Passive flow control; PIV; Visualization; Vortex; Wake;

    机译：流量测量;被动流量控制;PIV;可视化;涡流;唤醒;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号